Merged Main and Code-Generator

# Conflicts:
#	src/test/java/parser/AstBuilderTest.java

.gitea/workflows/test.yml

@@ -0,0 +1,15 @@
+name: Gitea Actions Demo
+run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
+on: [push]
+
+jobs:
+  Explore-Gitea-Actions:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-java@v4
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+    - name: Run the Maven verify phase
+      run: mvn --batch-mode --update-snapshots verify

.gitignore

@@ -76,4 +76,11 @@ fabric.properties
 # Android studio 3.1+ serialized cache file
 .idea/caches/build_file_checksums.ser
 
-/target
+/target
+src/main/resources/logs/RaupenLog.log
+src/main/resources/output/CompilerInput.class
+src/test/resources/output/javac/CompilerInput$Test.class
+src/test/resources/output/javac/CompilerInput.class
+src/test/resources/output/raupenpiler/CompilerInput.class
+src/test/resources/output/raupenpiler/CompilerInput$Test.class
+.idea/inspectionProfiles/Project_Default.xml

.idea/ANTLRv4ToolGrammarProperties.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ANTLRv4ToolGrammarProperties">
+    <option name="perGrammarGenerationSettings">
+      <list>
+        <PerGrammarGenerationSettings>
+          <option name="fileName" value="$PROJECT_DIR$/src/main/java/parser/grammar/SimpleJava.g4" />
+          <option name="autoGen" value="true" />
+          <option name="outputDir" value="C:\Users\janni\Desktop\NichtHaskell2.0\src\main\java" />
+          <option name="libDir" value="" />
+          <option name="encoding" value="" />
+          <option name="pkg" value="parser.generated" />
+          <option name="language" value="" />
+          <option name="generateVisitor" value="true" />
+        </PerGrammarGenerationSettings>
+      </list>
+    </option>
+  </component>
+</project>

.idea/codeStyles/codeStyleConfig.xml

@@ -0,0 +1,5 @@
+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="PREFERRED_PROJECT_CODE_STYLE" value="Default" />
+  </state>
+</component>

.idea/jarRepositories.xml

@@ -6,6 +6,11 @@
       <option name="name" value="Central Repository" />
       <option name="url" value="https://repo.maven.apache.org/maven2" />
     </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven_central" />
+      <option name="name" value="Maven Central" />
+      <option name="url" value="https://repo.maven.apache.org/maven2/" />
+    </remote-repository>
     <remote-repository>
       <option name="id" value="central" />
       <option name="name" value="Maven Central repository" />

.idea/misc.xml

@@ -6,10 +6,20 @@
         <PerGrammarGenerationSettings>
           <option name="fileName" value="$PROJECT_DIR$/src/main/java/parser/SimpleJava.g4" />
           <option name="autoGen" value="true" />
-          <option name="outputDir" value="C:\Users\ARB00075\Documents\DH\Compilerbau\NichtHaskell2.0\src\main\java\parser\out" />
+          <option name="outputDir" value="C:\Users\ARB00075\Documents\DH\Compilerbau\NichtHaskell2.0\src\main\java" />
           <option name="libDir" value="" />
           <option name="encoding" value="" />
-          <option name="pkg" value="" />
+          <option name="pkg" value="parser.generated" />
+          <option name="language" value="" />
+          <option name="generateVisitor" value="true" />
+        </PerGrammarGenerationSettings>
+        <PerGrammarGenerationSettings>
+          <option name="fileName" value="$PROJECT_DIR$/src/main/java/parser/grammar/SimpleJava.g4" />
+          <option name="autoGen" value="true" />
+          <option name="outputDir" value="C:\Users\Maxi\Documents\DHBW\Compilerbau\NichtHaskell2.0\src\main\java" />
+          <option name="libDir" value="" />
+          <option name="encoding" value="" />
+          <option name="pkg" value="parser.generated" />
           <option name="language" value="" />
           <option name="generateVisitor" value="true" />
         </PerGrammarGenerationSettings>
@@ -40,7 +50,7 @@
       </list>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="openjdk-21" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_22" default="true" project-jdk-name="openjdk-22" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>

pom.xml

@@ -4,13 +4,14 @@
          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
 
-    <groupId>org.example</groupId>
+    <groupId>de.dhbw-stuttgart</groupId>
     <artifactId>JavaCompiler</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.0</version>
 
     <properties>
-        <maven.compiler.source>21</maven.compiler.source>
-        <maven.compiler.target>21</maven.compiler.target>
+        <java.version>22</java.version>
+        <maven.compiler.source>${java.version}</maven.compiler.source>
+        <maven.compiler.target>${java.version}</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -27,13 +28,28 @@
             <artifactId>antlr4-runtime</artifactId>
             <version>4.13.1</version>
         </dependency>
-
         <dependency>
             <groupId>org.ow2.asm</groupId>
             <artifactId>asm</artifactId>
             <version>9.7</version>
         </dependency>
-
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+            <version>2.16.0</version>
+        </dependency>
+        <dependency>
+            <groupId>org.assertj</groupId>
+            <artifactId>assertj-core</artifactId>
+            <version>3.26.0</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.mockito</groupId>
+            <artifactId>mockito-core</artifactId>
+            <version>5.11.0</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>
@@ -44,7 +60,35 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>3.0.0-M5</version> <!-- Change the version as needed -->
             </plugin>
+            <plugin>
+                <artifactId>maven-assembly-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>make-assembly</id> <!-- this is used for inheritance merges -->
+                        <phase>package</phase> <!-- bind to the packaging phase -->
+                        <goals>
+                            <goal>single</goal>
+                        </goals>
+                    </execution>
+                </executions>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>main.Main</mainClass>
+                        </manifest>
+                    </archive>
+                    <descriptorRefs>
+                        <descriptorRef>jar-with-dependencies</descriptorRef>
+                    </descriptorRefs>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
-
+    <repositories>
+        <repository>
+            <id>maven_central</id>
+            <name>Maven Central</name>
+            <url>https://repo.maven.apache.org/maven2/</url>
+        </repository>
+    </repositories>
 </project>

src/main/java/ast/ASTNode.java

@@ -0,0 +1,20 @@
+package ast;
+
+import bytecode.visitor.ClassVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public interface ASTNode {
+
+    //Todo: @BruderJohn & @i22007 Interface anwenden + geeignetetn Methodename.
+
+    /*
+    Typecheck:
+    public TypeCheckResult acceptType(SemanticVisitor visitor);
+
+    Bytecode:
+    public void accepByteCode(ClassVisitor classVisitor);
+     */
+}
+
+

src/main/java/ast/AccessModifier.java

@@ -1,5 +0,0 @@
-package ast;
-
-public enum AccessModifier {
-    Public,Private
-}

src/main/java/ast/ClassDeclaration.java

@@ -1,7 +0,0 @@
-package ast;
-
-public abstract class ClassDeclaration {
-    public AccessModifier accessModifier;
-
-
-}

src/main/java/ast/ClassNode.java

@@ -0,0 +1,53 @@
+package ast;
+
+import ast.type.AccessModifierNode;
+import ast.members.ConstructorNode;
+import ast.members.MemberNode;
+import ast.members.MethodNode;
+import bytecode.visitor.ClassVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ClassNode implements ASTNode, Visitable {
+    public AccessModifierNode accessType;
+    public String identifier;
+    public List<MemberNode> members = new ArrayList<>();
+
+    public ClassNode(){
+
+    }
+
+    public ClassNode(String accessType, String identifier){
+        this.accessType = new AccessModifierNode(accessType);
+        this.identifier = identifier;
+    }
+
+    public void addMember(MemberNode member) {
+        members.add(member);
+    }
+
+    public List<MethodNode> getMethods(){
+        List<MethodNode> methods = new ArrayList<>();
+        for (MemberNode member : members) {
+            if (member instanceof MethodNode methodNode) {
+                methods.add(methodNode);
+            }
+        }
+        return methods;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(ClassVisitor classVisitor) {
+        classVisitor.visit(this);
+    }
+
+}

src/main/java/ast/Identifier.java

@@ -1,13 +0,0 @@
-package ast;
-
-public class Identifier {
-    private String name;
-
-    public Identifier(String name) {
-        this.name = name;
-    }
-
-    public String getName() {
-        return this.name;
-    }
-}

src/main/java/ast/ProgramNode.java

@@ -0,0 +1,27 @@
+package ast;
+
+import bytecode.visitor.ProgramVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ProgramNode implements ASTNode, Visitable {
+    public List<ClassNode> classes = new ArrayList<>();
+
+    public void addClass(ClassNode classNode) {
+        classes.add(classNode);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(ProgramVisitor programVisitor) {
+        programVisitor.visit(this);
+    }
+}

src/main/java/ast/Type.java

@@ -1,7 +0,0 @@
-package ast;
-
-public interface Type {
-
-}
-
-

src/main/java/ast/expressions/IExpressionNode.java

@@ -0,0 +1,13 @@
+package ast.expressions;
+
+import ast.ASTNode;
+import ast.type.type.ITypeNode;
+import visitor.Visitable;
+
+public interface IExpressionNode extends ASTNode, Visitable {
+
+    ITypeNode getType();
+
+    void setType(ITypeNode type);
+
+}

src/main/java/ast/expressions/binaryexpressions/BinaryNode.java

@@ -0,0 +1,33 @@
+package ast.expressions.binaryexpressions;
+
+import ast.expressions.IExpressionNode;
+import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+public class BinaryNode implements IExpressionNode, Visitable {
+
+    private ITypeNode typeNode;
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public ITypeNode getType() {
+        return typeNode;
+    }
+
+    @Override
+    public void setType(ITypeNode type) {
+        this.typeNode = type;
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+}

src/main/java/ast/expressions/binaryexpressions/CalculationNode.java

@@ -0,0 +1,45 @@
+package ast.expressions.binaryexpressions;
+
+import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class CalculationNode extends BinaryNode {
+    public CalculationNode calculationExpression;
+    public EnumLineOperator operator;
+    public DotNode dotExpression;
+    private ITypeNode typeNode;
+
+    public CalculationNode(CalculationNode calculationExpression, String operator, DotNode dotExpression) {
+        this.calculationExpression = calculationExpression;
+        setOperator(operator);
+        this.dotExpression = dotExpression;
+    }
+
+    public CalculationNode(DotNode dotExpression) {
+        this.dotExpression = dotExpression;
+    }
+
+    private void setOperator(String operator) {
+        if(operator != null) {
+            if(operator.equals("+")) {
+                this.operator = EnumLineOperator.PLUS;
+            } else if(operator.equals("-")) {
+                this.operator = EnumLineOperator.MINUS;
+            }
+        }
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/expressions/binaryexpressions/DotNode.java

@@ -0,0 +1,42 @@
+package ast.expressions.binaryexpressions;
+
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class DotNode extends BinaryNode {
+    public DotNode dotExpression;
+    public EnumDotOperator operator;
+    public DotSubstractionNode dotSubstractionExpression;
+
+    public DotNode(DotNode dotExpression, String operator, DotSubstractionNode dotSubstractionExpression) {
+        this.dotExpression = dotExpression;
+        setOperator(operator);
+        this.dotSubstractionExpression = dotSubstractionExpression;
+    }
+
+    public DotNode(DotSubstractionNode dotSubstractionExpression) {
+        this.dotSubstractionExpression = dotSubstractionExpression;
+    }
+
+    private void setOperator(String operator) {
+        if(operator.equals("*")) {
+            this.operator = EnumDotOperator.MULT;
+        } else if(operator.equals("/")) {
+            this.operator = EnumDotOperator.DIV;
+        } else if(operator.equals("%")) {
+            this.operator = EnumDotOperator.MOD;
+        }
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/expressions/binaryexpressions/DotSubstractionNode.java

@@ -0,0 +1,45 @@
+package ast.expressions.binaryexpressions;
+
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.type.type.*;
+import ast.type.ValueNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class DotSubstractionNode extends BinaryNode {
+    public ValueNode value;
+    public String identifier;
+    public MemberAccessNode memberAccess;
+    public MethodCallNode methodCall;
+    public CalculationNode calculationExpression;
+
+    public DotSubstractionNode(ValueNode value) {
+        this.value = value;
+    }
+
+    public DotSubstractionNode(String identifier) {
+        this.identifier = identifier;
+    }
+
+    public DotSubstractionNode(MemberAccessNode memberAccess) {
+        this.memberAccess = memberAccess;
+    }
+
+    public DotSubstractionNode(MethodCallNode methodCall, CalculationNode calculationExpression) {
+        this.methodCall = methodCall;
+        this.calculationExpression = calculationExpression;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/expressions/binaryexpressions/EnumDotOperator.java

@@ -0,0 +1,5 @@
+package ast.expressions.binaryexpressions;
+
+public enum EnumDotOperator {
+    MULT, DIV, MOD
+}

src/main/java/ast/expressions/binaryexpressions/EnumLineOperator.java

@@ -0,0 +1,5 @@
+package ast.expressions.binaryexpressions;
+
+public enum EnumLineOperator {
+    PLUS, MINUS
+}

src/main/java/ast/expressions/binaryexpressions/EnumNonCalculationOperator.java

@@ -0,0 +1,5 @@
+package ast.expressions.binaryexpressions;
+
+public enum EnumNonCalculationOperator {
+    AND, OR, GREATER, LESS, GREATER_EQUAL, LESS_EQUAL, EQUAL, NOT_EQUAL
+}

src/main/java/ast/expressions/binaryexpressions/NonCalculationNode.java

@@ -0,0 +1,51 @@
+package ast.expressions.binaryexpressions;
+
+import ast.expressions.IExpressionNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class NonCalculationNode extends BinaryNode {
+    public UnaryNode unaryExpression;
+    public EnumNonCalculationOperator operator;
+    public IExpressionNode expression;
+
+    public NonCalculationNode(UnaryNode unaryExpression, String operator, IExpressionNode expression) {
+        this.unaryExpression = unaryExpression;
+        setOperator(operator);
+        this.expression = expression;
+    }
+
+    private void setOperator(String operator) {
+        if(operator.equals("&&")) {
+            this.operator = EnumNonCalculationOperator.AND;
+        } else if(operator.equals("||")) {
+            this.operator = EnumNonCalculationOperator.OR;
+        } else if(operator.equals(">")) {
+            this.operator = EnumNonCalculationOperator.GREATER;
+        } else if(operator.equals("<")) {
+            this.operator = EnumNonCalculationOperator.LESS;
+        } else if(operator.equals(">=")) {
+            this.operator = EnumNonCalculationOperator.GREATER_EQUAL;
+        } else if(operator.equals("<=")) {
+            this.operator = EnumNonCalculationOperator.LESS_EQUAL;
+        } else if(operator.equals("==")) {
+            this.operator = EnumNonCalculationOperator.EQUAL;
+        } else if(operator.equals("!=")) {
+            this.operator = EnumNonCalculationOperator.NOT_EQUAL;
+        }
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/expressions/unaryexpressions/MemberAccessNode.java

@@ -0,0 +1,43 @@
+package ast.expressions.unaryexpressions;
+
+import ast.ASTNode;
+import bytecode.visitor.MethodVisitor;
+import ast.type.type.ITypeNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MemberAccessNode implements ASTNode, Visitable {
+    public Boolean thisExpr;
+    public List<String> identifiers = new ArrayList<>();
+    private ITypeNode typeNode;
+
+    public MemberAccessNode(Boolean thisExpr) {
+        this.thisExpr = thisExpr;
+    }
+
+    public void addIdentifier(String identifier) {
+        identifiers.add(identifier);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+    
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    public ITypeNode getTypeNode() {
+        return typeNode;
+    }
+
+    public void setTypeNode(ITypeNode typeNode) {
+        this.typeNode = typeNode;
+    }
+
+}

src/main/java/ast/expressions/unaryexpressions/NotNode.java

@@ -0,0 +1,27 @@
+package ast.expressions.unaryexpressions;
+
+import ast.ASTNode;
+import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+public class NotNode implements ASTNode, Visitable {
+    public IExpressionNode expression;
+
+    public NotNode(IExpressionNode expression) {
+        this.expression = expression;
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return null;
+    }
+
+}

src/main/java/ast/expressions/unaryexpressions/UnaryNode.java

@@ -0,0 +1,70 @@
+package ast.expressions.unaryexpressions;
+
+import ast.expressions.IExpressionNode;
+import ast.statements.IStatementNode;
+import ast.type.type.*;
+import ast.type.ValueNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+import java.util.Objects;
+
+public class UnaryNode implements IExpressionNode {
+    public String thisExp;
+    public String identifier;
+    public MemberAccessNode memberAccess;
+    public ValueNode value;
+    public NotNode notExpression;
+    public IStatementNode statement;
+    public IExpressionNode expression;
+    private ITypeNode type;
+
+    public UnaryNode(String value) {
+        if(Objects.equals(value, "this")) {
+            this.thisExp = "this";
+        } else {
+            this.identifier = value;
+        }
+    }
+
+    public UnaryNode(MemberAccessNode memberAccess) {
+        this.memberAccess = memberAccess;
+    }
+
+    public UnaryNode(ValueNode value) {
+        this.value = value;
+    }
+
+    public UnaryNode(NotNode notExpression) {
+        this.notExpression = notExpression;
+    }
+
+    public UnaryNode(IStatementNode statement) {
+        this.statement = statement;
+    }
+
+    public UnaryNode(IExpressionNode expression) {
+        this.expression = expression;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public ITypeNode getType() {
+        return type;
+    }
+
+    public void setType(ITypeNode type) {
+        this.type = type;
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/literal/BooleanLiteralNode.java

@@ -0,0 +1,11 @@
+package ast.literal;
+
+public class BooleanLiteralNode {
+    private String value;
+
+    public BooleanLiteralNode(String value) {this.value = value;}
+
+    public String getValue() {
+        return value;
+    }
+}

src/main/java/ast/literal/CharLiteralNode.java

@@ -0,0 +1,11 @@
+package ast.literal;
+
+public class CharLiteralNode {
+    public String value;
+
+    public CharLiteralNode(String value) {this.value = value;}
+
+    public String getValue() {
+        return value;
+    }
+}

src/main/java/ast/literal/LiteralNode.java

@@ -0,0 +1,31 @@
+package ast.literal;
+
+import ast.expressions.IExpressionNode;
+import ast.type.type.ITypeNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class LiteralNode implements IExpressionNode {
+
+    public String value;
+    private ITypeNode type;
+
+    public LiteralNode(String value, ITypeNode type) {
+        this.value = value;
+        this.type = type;
+    }
+
+    public ITypeNode getType() {
+        return type;
+    }
+
+    public void setType(ITypeNode type) {
+        this.type = type;
+    }
+
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return null;
+    }
+}

src/main/java/ast/members/ConstructorNode.java

@@ -0,0 +1,47 @@
+package ast.members;
+
+import ast.parameters.ParameterNode;
+import ast.statements.BlockNode;
+import ast.type.AccessModifierNode;
+import bytecode.visitor.MethodVisitor;
+import visitor.Visitable;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+public class ConstructorNode extends MethodNode implements Visitable {
+    public AccessModifierNode accessType;
+    public String identifier;
+    public List<ParameterNode> parameters = new ArrayList<>();
+    public BlockNode block;
+
+    public ConstructorNode(String accessType, String identifier, BlockNode block) {
+        this.accessType = new AccessModifierNode(accessType);
+        this.identifier = identifier;
+        this.block = block;
+    }
+
+    public void addParameter(ParameterNode parameterNode) {
+        parameters.add(parameterNode);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    public boolean isSame(MethodNode methodNode) {
+        if (!(Objects.equals(this.identifier, methodNode.getIdentifier()))
+                || getParameters().size() != methodNode.getParameters().size()) {
+            return false;
+        }
+
+        for (int i = 0; i < this.getParameters().size(); i++) {
+            if (!this.getParameters().get(i).type.equals(methodNode.getParameters().get(i).type)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}

src/main/java/ast/members/FieldNode.java

@@ -0,0 +1,32 @@
+package ast.members;
+
+import ast.type.AccessModifierNode;
+import ast.type.type.ITypeNode;
+import bytecode.visitor.ClassVisitor;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+public class FieldNode implements MemberNode, Visitable {
+    public AccessModifierNode accessTypeNode;
+    public ITypeNode type;
+    public String identifier;
+
+    public FieldNode(AccessModifierNode accessTypeNode, ITypeNode type, String name){
+        this.accessTypeNode = accessTypeNode;
+        this.type = type;
+        this.identifier = name;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(ClassVisitor classVisitor) {
+        classVisitor.visit(this);
+    }
+
+}

src/main/java/ast/members/MainMethodNode.java

@@ -0,0 +1,18 @@
+package ast.members;
+
+import ast.statements.BlockNode;
+import bytecode.visitor.MethodVisitor;
+import visitor.Visitable;
+
+public class MainMethodNode extends MethodNode implements Visitable {
+    public BlockNode block;
+
+    public MainMethodNode(BlockNode block) {
+        this.block = block;
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+}

src/main/java/ast/members/MemberNode.java

@@ -0,0 +1,16 @@
+package ast.members;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonSubTypes;
+import com.fasterxml.jackson.annotation.JsonTypeInfo;
+import ast.ASTNode;
+
+@JsonIgnoreProperties(ignoreUnknown = true)
+@JsonTypeInfo(use = JsonTypeInfo.Id.NAME, include = JsonTypeInfo.As.PROPERTY)
+@JsonSubTypes({
+        @JsonSubTypes.Type(value = MethodNode.class, name = "Method"),
+
+        @JsonSubTypes.Type(value = FieldNode.class, name = "Field") }
+)
+
+public interface MemberNode extends ASTNode {}

src/main/java/ast/members/MethodNode.java

@@ -0,0 +1,83 @@
+package ast.members;
+
+import ast.parameters.ParameterNode;
+import ast.statements.BlockNode;
+import ast.type.AccessModifierNode;
+import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+
+public class MethodNode implements MemberNode, Visitable {
+    public AccessModifierNode accesModifier;
+    private ITypeNode type;
+    public Boolean voidType;
+    private String identifier;
+    public List<ParameterNode> parameters = new ArrayList<>();
+    public BlockNode block;
+
+    public MethodNode() {
+    }
+
+    public MethodNode(String accessModifier, ITypeNode type, Boolean voidType, String identifier, BlockNode block){
+        this.accesModifier = new AccessModifierNode(accessModifier);
+        this.type = type;
+        this.voidType = voidType;
+        this.identifier = identifier;
+        this.block = block;
+    }
+
+    public void addParameter(ParameterNode parameter) {
+        this.parameters.add(parameter);
+    }
+
+    public List<ParameterNode> getParameters() {
+        return parameters;
+    }
+
+    public boolean isSame(MethodNode methodNode){
+        if (!(Objects.equals(this.identifier, methodNode.getIdentifier())) || type.equals(methodNode.type)
+                || getParameters().size() != methodNode.getParameters().size()) {
+            return false;
+        }
+
+        for (int i = 0; i < this.getParameters().size(); i++) {
+            if (!this.getParameters().get(i).type.equals(methodNode.getParameters().get(i).type)) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    public String getIdentifier() {
+        return identifier;
+    }
+
+    public ITypeNode getType() {
+        return type;
+    }
+
+    public void setType(ITypeNode type) {
+        this.type = type;
+    }
+
+    public void setIdentifier(String identifier) {
+        this.identifier = identifier;
+    }
+
+}

src/main/java/ast/parameters/ParameterNode.java

@@ -0,0 +1,23 @@
+package ast.parameters;
+
+import ast.ASTNode;
+import ast.type.type.*;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+public class ParameterNode implements ASTNode, Visitable {
+    public ITypeNode type;
+    public String identifier;
+
+    public ParameterNode(ITypeNode type, String identifier) {
+        this.type = type;
+        this.identifier = identifier;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+}

src/main/java/ast/statement/BlockStatementNode.java

@@ -0,0 +1,11 @@
+package ast.statement;
+
+import ast.statements.IStatementNode;
+
+import java.util.List;
+
+public class BlockStatementNode {
+    List<IStatementNode> statements;
+
+    public BlockStatementNode(List<IStatementNode> statements) {this.statements = statements;}
+}

src/main/java/ast/statementexpressions/AssignNode.java

@@ -0,0 +1,27 @@
+package ast.statementexpressions;
+
+import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class AssignNode implements IStatementExpressionNode {
+    public AssignableNode assignable;
+    public IExpressionNode expression;
+
+    public AssignNode(AssignableNode assignable, IExpressionNode expression) {
+        this.assignable = assignable;
+        this.expression = expression;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/statementexpressions/AssignableNode.java

@@ -0,0 +1,35 @@
+package ast.statementexpressions;
+
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.type.type.ITypeNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class AssignableNode implements IStatementExpressionNode {
+    public String identifier;
+    private ITypeNode typeNode;
+
+    public MemberAccessNode memberAccess;
+
+    public AssignableNode(String identifier) {
+        this.identifier = identifier;
+    }
+
+    public AssignableNode(MemberAccessNode memberAccess) {
+        this.memberAccess = memberAccess;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    public ITypeNode getTypeNode() {
+        return typeNode;
+    }
+
+    public void setTypeNode(ITypeNode typeNode) {
+        this.typeNode = typeNode;
+    }
+
+}

src/main/java/ast/statementexpressions/IStatementExpressionNode.java

@@ -0,0 +1,5 @@
+package ast.statementexpressions;
+
+import ast.statements.IStatementNode;
+
+public interface IStatementExpressionNode extends IStatementNode {}

src/main/java/ast/statementexpressions/NewDeclarationNode.java

@@ -0,0 +1,33 @@
+package ast.statementexpressions;
+
+import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class NewDeclarationNode implements IStatementExpressionNode {
+    public String identifier;
+    public List<IExpressionNode> expressions = new ArrayList<>();
+
+    public NewDeclarationNode(String identifier) {
+        this.identifier = identifier;
+    }
+
+    public void addExpression(IExpressionNode expression) {
+        expressions.add(expression);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/statementexpressions/crementexpressions/CrementType.java

@@ -0,0 +1,5 @@
+package ast.statementexpressions.crementexpressions;
+
+public enum CrementType {
+    PREFIX, SUFFIX
+}

src/main/java/ast/statementexpressions/crementexpressions/DecrementNode.java

@@ -0,0 +1,23 @@
+package ast.statementexpressions.crementexpressions;
+
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.IStatementExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+public class DecrementNode implements IStatementExpressionNode {
+    public CrementType crementType;
+    public AssignableNode assignableExpression;
+
+    public DecrementNode(CrementType crementType, AssignableNode assignableExpression) {
+        this.crementType = crementType;
+        this.assignableExpression = assignableExpression;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+}

src/main/java/ast/statementexpressions/crementexpressions/IncrementNode.java

@@ -0,0 +1,22 @@
+package ast.statementexpressions.crementexpressions;
+
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.IStatementExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class IncrementNode implements IStatementExpressionNode {
+    public CrementType crementType;
+    public AssignableNode assignableExpression;
+
+    public IncrementNode(CrementType crementType, AssignableNode assignableExpression) {
+        this.crementType = crementType;
+        this.assignableExpression = assignableExpression;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+}

src/main/java/ast/statementexpressions/methodcallstatementnexpressions/ChainedMethodNode.java

@@ -0,0 +1,34 @@
+package ast.statementexpressions.methodcallstatementnexpressions;
+
+import ast.ASTNode;
+import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ChainedMethodNode implements ASTNode, Visitable {
+    public String identifier;
+    public List<IExpressionNode> expressions = new ArrayList<>();
+
+    public ChainedMethodNode(String identifier) {
+        this.identifier = identifier;
+    }
+
+    public void addExpression(IExpressionNode expression) {
+        expressions.add(expression);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return null;
+    }
+}

src/main/java/ast/statementexpressions/methodcallstatementnexpressions/MethodCallNode.java

@@ -0,0 +1,41 @@
+package ast.statementexpressions.methodcallstatementnexpressions;
+
+import ast.expressions.IExpressionNode;
+import ast.statements.IStatementNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MethodCallNode implements IStatementNode {
+    public TargetNode target;
+    public List<ChainedMethodNode> chainedMethods = new ArrayList<>();
+    public String identifier;
+    public List<IExpressionNode> parameters = new ArrayList<>();
+
+    public MethodCallNode(TargetNode target, String identifier) {
+        this.target = target;
+        this.identifier = identifier;
+    }
+
+    public void addChainedMethod(ChainedMethodNode chainedMethode) {
+        chainedMethods.add(chainedMethode);
+    }
+
+    public void addExpression(IExpressionNode parameter) {
+        parameters.add(parameter);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/statementexpressions/methodcallstatementnexpressions/TargetNode.java

@@ -0,0 +1,43 @@
+package ast.statementexpressions.methodcallstatementnexpressions;
+
+import ast.ASTNode;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.statementexpressions.NewDeclarationNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+public class TargetNode implements ASTNode, Visitable {
+    public Boolean thisTar;
+    public MemberAccessNode memberAccess;
+    public NewDeclarationNode newDeclaration;
+    public String identifier;
+
+    public TargetNode(Boolean thisTar) {
+        this.thisTar = thisTar;
+    }
+
+    public TargetNode(MemberAccessNode memberAccess) {
+        this.memberAccess = memberAccess;
+    }
+
+    public TargetNode(NewDeclarationNode newDeclaration) {
+        this.newDeclaration = newDeclaration;
+    }
+
+    public TargetNode(String identifier) {
+        this.identifier = identifier;
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+
+}

src/main/java/ast/statements/BlockNode.java

@@ -0,0 +1,25 @@
+package ast.statements;
+
+import ast.ASTNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class BlockNode implements IStatementNode, Visitable {
+    public List<IStatementNode> statements = new ArrayList<>();
+
+    public BlockNode() {}
+
+    public void addStatement(IStatementNode statement) {
+        statements.add(statement);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+}

src/main/java/ast/statements/BlockStatementNode.java

@@ -0,0 +1,10 @@
+package ast.statements;
+
+
+import java.util.List;
+
+public class BlockStatementNode {
+    List<IStatementNode> statements;
+
+    public BlockStatementNode(List<IStatementNode> statements) {this.statements = statements;}
+}

src/main/java/ast/statements/ElseNode.java

@@ -0,0 +1,18 @@
+package ast.statements;
+
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class ElseNode implements IStatementNode {
+    public BlockNode block;
+
+    public ElseNode(BlockNode block) {
+        this.block = block;
+    }
+
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+}

src/main/java/ast/statements/IStatementNode.java

@@ -0,0 +1,7 @@
+package ast.statements;
+
+import ast.ASTNode;
+import visitor.Visitable;
+
+public interface IStatementNode extends ASTNode, Visitable {
+}

src/main/java/ast/statements/IfElseNode.java

@@ -0,0 +1,27 @@
+package ast.statements;
+
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class IfElseNode implements IStatementNode {
+    public IfNode ifStatement;
+    public List<IfNode> elseIfStatements = new ArrayList<>();
+    public ElseNode elseStatement;
+
+    public IfElseNode(IfNode ifStatement, ElseNode elseNode) {
+        this.ifStatement = ifStatement;
+        this.elseStatement = elseNode;
+    }
+
+    public void addElseIfStatement(IfNode elseIfStament) {
+        elseIfStatements.add(elseIfStament);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+}

src/main/java/ast/statements/IfNode.java

@@ -0,0 +1,20 @@
+package ast.statements;
+
+import ast.expressions.IExpressionNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class IfNode implements IStatementNode {
+    public IExpressionNode expression;
+    public BlockNode block;
+
+    public IfNode(IExpressionNode expression, BlockNode block) {
+        this.expression = expression;
+        this.block = block;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+}

src/main/java/ast/statements/LocalVariableDeclarationNode.java

@@ -0,0 +1,32 @@
+package ast.statements;
+
+import ast.expressions.IExpressionNode;
+import ast.type.type.*;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class LocalVariableDeclarationNode implements IStatementNode {
+    public ITypeNode type;
+    public String identifier;
+    public String assign;
+    public IExpressionNode expression;
+
+    public LocalVariableDeclarationNode(ITypeNode type, String identifier, String assign, IExpressionNode expression) {
+        this.type = type;
+        this.identifier = identifier;
+        this.assign = assign;
+        this.expression = expression;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/statements/ReturnNode.java

@@ -0,0 +1,30 @@
+package ast.statements;
+
+import ast.expressions.IExpressionNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class ReturnNode implements IStatementNode {
+    public IExpressionNode expression;
+    public Boolean voidReturn = false;
+
+    public ReturnNode(IExpressionNode expression) {
+        if(expression != null) {
+            this.expression = expression;
+        } else {
+            voidReturn = true;
+        }
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+}

src/main/java/ast/statements/WhileNode.java

@@ -0,0 +1,20 @@
+package ast.statements;
+
+import ast.expressions.IExpressionNode;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+
+public class WhileNode implements IStatementNode {
+    public IExpressionNode expression;
+    public BlockNode block;
+
+    public WhileNode(IExpressionNode expression, BlockNode block) {
+        this.expression = expression;
+        this.block = block;
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+}

src/main/java/ast/type/AccessModifierNode.java

@@ -0,0 +1,28 @@
+package ast.type;
+
+public class AccessModifierNode {
+    public EnumAccessModifierNode accessType;
+
+    public AccessModifierNode(String accessModifier) {
+        setModifier(accessModifier);
+    }
+
+    private void setModifier(String accessType) {
+        switch(accessType) {
+            case "public":
+                this.accessType = EnumAccessModifierNode.PUBLIC;
+                break;
+            case "public static":
+                this.accessType = EnumAccessModifierNode.PUBLIC_STATIC;
+                break;
+            case "private":
+                this.accessType = EnumAccessModifierNode.PRIVATE;
+                break;
+            case "private static":
+                this.accessType = EnumAccessModifierNode.PRIVATE_STATIC;
+                break;
+            default:
+                this.accessType = null;
+        }
+    }
+}

src/main/java/ast/type/EnumAccessModifierNode.java

@@ -0,0 +1,6 @@
+package ast.type;
+
+public enum EnumAccessModifierNode {
+    PUBLIC, PRIVATE, PUBLIC_STATIC, PRIVATE_STATIC
+}
+

src/main/java/ast/type/EnumValueNode.java

@@ -0,0 +1,5 @@
+package ast.type;
+
+public enum EnumValueNode {
+    INT_VALUE, BOOLEAN_VALUE, CHAR_VALUE, NULL_VALUE
+}

src/main/java/ast/type/ValueNode.java

@@ -0,0 +1,27 @@
+package ast.type;
+
+import ast.ASTNode;
+import bytecode.visitor.MethodVisitor;
+import semantic.SemanticVisitor;
+import typechecker.TypeCheckResult;
+import visitor.Visitable;
+
+public class ValueNode implements ASTNode, Visitable {
+    public EnumValueNode valueType;
+    public String value;
+
+    public ValueNode(EnumValueNode valueType, String value) {
+        this.valueType = valueType;
+        this.value = value;
+    }
+
+    @Override
+    public void accept(MethodVisitor methodVisitor) {
+        methodVisitor.visit(this);
+    }
+
+    @Override
+    public TypeCheckResult accept(SemanticVisitor visitor) {
+        return visitor.analyze(this);
+    }
+}

src/main/java/ast/type/type/BaseType.java

@@ -0,0 +1,28 @@
+package ast.type.type;
+
+public class BaseType implements ITypeNode {
+
+    private TypeEnum typeEnum;
+
+    public BaseType(TypeEnum typeEnum) {
+        this.typeEnum = typeEnum;
+    }
+
+    public TypeEnum getTypeEnum() {
+        return typeEnum;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        BaseType other = (BaseType) obj;
+        if (typeEnum != other.typeEnum)
+            return false;
+        return true;
+    }
+}

src/main/java/ast/type/type/ITypeNode.java

@@ -0,0 +1,5 @@
+package ast.type.type;
+
+public interface ITypeNode {
+
+}

src/main/java/ast/type/type/ReferenceType.java

@@ -0,0 +1,33 @@
+package ast.type.type;
+
+public class ReferenceType implements ITypeNode{
+
+    private String identifier;
+
+    public ReferenceType(String identifier) {
+        this.identifier = identifier;
+    }
+
+    public String getIdentifier() {
+        return identifier;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        ReferenceType other = (ReferenceType) obj;
+        if (identifier == null) {
+            if (other.identifier != null)
+                return false;
+        } else if (!identifier.equals(other.identifier))
+            return false;
+        return true;
+    }
+
+
+}

src/main/java/ast/type/type/TypeEnum.java

@@ -0,0 +1,9 @@
+package ast.type.type;
+
+public enum TypeEnum {
+    VOID,
+    INT,
+    CHAR,
+    BOOL;
+
+}

src/main/java/bytecode/ByteCodeGenerator.java

@@ -1,33 +1,90 @@
 package bytecode;
 
+import ast.ProgramNode;
+import ast.ClassNode;
+import ast.members.MainMethodNode;
+import ast.members.MemberNode;
+import bytecode.visitor.ProgramVisitor;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
 import java.io.FileOutputStream;
 import java.io.IOException;
-import org.objectweb.asm.ClassWriter;
-import org.objectweb.asm.Opcodes;
-import parser.ClassDeclarationNode;
-import parser.ProgramNode;
+import java.util.jar.JarOutputStream;
+import java.util.jar.Manifest;
 
-public class ByteCodeGenerator {
+public class ByteCodeGenerator implements ProgramVisitor {
 
-  public void generateByteCode(ProgramNode ast) {
-    for (ClassDeclarationNode classDeclarationNode : ast.classes) {
-      ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
-      cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, classDeclarationNode.identifier, null,
-          "java/lang/Object", null);
-      cw.visitEnd();
-      printIntoClassFile(cw.toByteArray(), classDeclarationNode.identifier);
+    private JarOutputStream jarOutputStream;
+    private ByteArrayOutputStream byteArrayOutputStream;
+    private String outputDirectory;
+    private boolean generateJar;
+    private boolean generateClassFiles;
+
+    public ByteCodeGenerator(String outputDirectory, boolean generateJar, boolean generateClassFiles) {
+        this.outputDirectory = outputDirectory;
+        this.generateJar = generateJar;
+        this.generateClassFiles = generateClassFiles;
     }
-  }
 
-  private void printIntoClassFile(byte[] byteCode, String name) {
-    String filePath = name + ".class";
+    @Override
+    public void visit(ProgramNode programNode) {
+        if(generateJar) {
+            byteArrayOutputStream = new ByteArrayOutputStream();
+            try {
+                Manifest manifest = new Manifest();
+                manifest.getMainAttributes().putValue("Manifest-Version", "1.0");
+                boolean foundMainClass = false;
+                for (ClassNode classNode : programNode.classes) {
+                    if (foundMainClass) {
+                        break;
+                    }
+                    for (MemberNode memberNode : classNode.members) {
+                        if (memberNode instanceof MainMethodNode) {
+                            manifest.getMainAttributes().putValue("Main-Class", classNode.identifier);
+                            foundMainClass = true;
+                            break;
+                        }
+                    }
+                }
 
-    try {
-      FileOutputStream fileOutputStream = new FileOutputStream(filePath);
-      fileOutputStream.write(byteCode);
-      fileOutputStream.close();
-    } catch (IOException e) {
-      e.printStackTrace();
+
+                jarOutputStream = new JarOutputStream(byteArrayOutputStream, manifest);
+            } catch (IOException e) {
+                throw new RuntimeException(e);
+            }
+
+            for (ClassNode classDeclarationNode : programNode.classes) {
+                ClassCodeGen classCodeGen = new ClassCodeGen(jarOutputStream, outputDirectory, generateJar, generateClassFiles);
+                classDeclarationNode.accept(classCodeGen);
+            }
+
+            try {
+                jarOutputStream.close();
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+
+            saveJarFile(byteArrayOutputStream.toByteArray(), "output.jar");
+        } else {
+            for (ClassNode classDeclarationNode : programNode.classes) {
+                ClassCodeGen classCodeGen = new ClassCodeGen(jarOutputStream, outputDirectory, generateJar, generateClassFiles);
+                classDeclarationNode.accept(classCodeGen);
+            }
+        }
+    }
+
+    private void saveJarFile(byte[] jarBytes, String jarFileName) {
+        File directory = new File(outputDirectory);
+        if (!directory.exists()) {
+            directory.mkdirs();
+        }
+
+        File jarFile = new File(directory, jarFileName);
+        try (FileOutputStream fos = new FileOutputStream(jarFile)) {
+            fos.write(jarBytes);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
-  }
 }

src/main/java/bytecode/ClassCodeGen.java

@@ -0,0 +1,96 @@
+package bytecode;
+
+import ast.ClassNode;
+import ast.members.FieldNode;
+import ast.members.MemberNode;
+import ast.members.MethodNode;
+import ast.type.type.BaseType;
+import bytecode.visitor.ClassVisitor;
+
+import java.io.File;
+
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.Opcodes;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.jar.JarEntry;
+import java.util.jar.JarOutputStream;
+
+
+public class ClassCodeGen implements ClassVisitor {
+    private Mapper mapper;
+    private ClassWriter classWriter;
+    private JarOutputStream jarOutputStream;
+    private String outputDirectory;
+    private boolean generateJar;
+    private boolean generateClassFiles;
+
+    public ClassCodeGen(JarOutputStream jarOutputStream, String outputDirectory, boolean generateJar, boolean generateClassFiles) {
+        mapper = new Mapper();
+        this.jarOutputStream = jarOutputStream;
+        this.outputDirectory = outputDirectory;
+        this.generateJar = generateJar;
+        this.generateClassFiles = generateClassFiles;
+    }
+
+    @Override
+    public void visit(ClassNode classNode) {
+        classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
+        classWriter.visit(Opcodes.V1_5, mapper.mapAccessTypeToOpcode(classNode.accessType), classNode.identifier, null,
+                "java/lang/Object", null);
+
+        for (MemberNode memberNode : classNode.members) {
+            if (memberNode instanceof FieldNode) {
+                visit((FieldNode) memberNode);
+            } else if (memberNode instanceof MethodNode) {
+                MethodCodeGen methodCodeGen = new MethodCodeGen(classWriter);
+                ((MethodNode) memberNode).accept(methodCodeGen);
+            }
+        }
+
+        if (generateJar) {
+            writeToJar(classWriter.toByteArray(), classNode.identifier);
+        }
+        if (generateClassFiles) {
+            printIntoClassFile(classWriter.toByteArray(), classNode.identifier, outputDirectory);
+        }
+
+        classWriter.visitEnd();
+    }
+
+    @Override
+    public void visit(FieldNode fieldNode) {
+        if (fieldNode.type instanceof BaseType) {
+            classWriter.visitField(mapper.mapAccessTypeToOpcode(fieldNode.accessTypeNode), fieldNode.identifier, mapper.getTypeChar((BaseType) fieldNode.type), null, null);
+        }
+        classWriter.visitEnd();
+    }
+
+    private void printIntoClassFile(byte[] byteCode, String name, String outputDirectory) {
+        File directory = new File(outputDirectory);
+        if (!directory.exists()) {
+            directory.mkdirs();
+        }
+
+        String filePath = outputDirectory + "/" + name + ".class";
+        try {
+            FileOutputStream fileOutputStream = new FileOutputStream(filePath);
+            fileOutputStream.write(byteCode);
+            fileOutputStream.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private void writeToJar(byte[] byteCode, String className) {
+        try {
+            JarEntry jarEntry = new JarEntry(className + ".class");
+            jarOutputStream.putNextEntry(jarEntry);
+            jarOutputStream.write(byteCode);
+            jarOutputStream.closeEntry();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}

src/main/java/bytecode/Mapper.java

@@ -0,0 +1,60 @@
+package bytecode;
+
+import ast.parameters.ParameterNode;
+import ast.type.*;
+import ast.type.type.BaseType;
+import ast.type.type.ReferenceType;
+import ast.type.type.TypeEnum;
+import org.objectweb.asm.Opcodes;
+
+import java.util.List;
+
+public class Mapper {
+    public int mapAccessTypeToOpcode(AccessModifierNode accessModifierNode) {
+        switch (accessModifierNode.accessType) {
+            case EnumAccessModifierNode.PUBLIC:
+                return Opcodes.ACC_PUBLIC;
+            case EnumAccessModifierNode.PRIVATE:
+                return Opcodes.ACC_PRIVATE;
+            case EnumAccessModifierNode.PUBLIC_STATIC:
+                return Opcodes.ACC_PUBLIC | Opcodes.ACC_STATIC;
+            case EnumAccessModifierNode.PRIVATE_STATIC:
+                return Opcodes.ACC_PRIVATE | Opcodes.ACC_STATIC;
+        }
+        return 0;
+    }
+
+    public String generateMethodDescriptor(BaseType type, List<ParameterNode> parameters) {
+        String descriptor = "(";
+        for (ParameterNode parameterNode : parameters) {
+            if(parameterNode.type instanceof BaseType) {
+                descriptor += getTypeChar((BaseType) parameterNode.type);
+            } else {
+                ReferenceType referenceType = (ReferenceType) parameterNode.type;
+                descriptor += "L" + referenceType.getIdentifier() + ";";
+            }
+        }
+        descriptor += ")";
+        descriptor += getTypeChar(type);
+        return descriptor;
+    }
+
+    public String getTypeChar(BaseType type) {
+        String typeChar = "";
+        switch (type.getTypeEnum()) {
+            case TypeEnum.INT:
+                typeChar = "I";
+                break;
+            case TypeEnum.CHAR:
+                typeChar = "C";
+                break;
+            case TypeEnum.BOOL:
+                typeChar = "Z";
+                break;
+            case TypeEnum.VOID:
+                typeChar = "V";
+                break;
+        }
+        return typeChar;
+    }
+}

src/main/java/bytecode/MethodCodeGen.java

@@ -0,0 +1,535 @@
+package bytecode;
+
+import ast.expressions.IExpressionNode;
+import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.NotNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.members.ConstructorNode;
+import ast.members.MainMethodNode;
+import ast.members.MethodNode;
+import ast.parameters.ParameterNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.NewDeclarationNode;
+import ast.statementexpressions.crementexpressions.CrementType;
+import ast.statementexpressions.crementexpressions.DecrementNode;
+import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.ChainedMethodNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
+import ast.statements.*;
+import ast.type.ValueNode;
+import ast.type.type.BaseType;
+import ast.type.type.ReferenceType;
+import ast.type.type.TypeEnum;
+import org.objectweb.asm.ClassWriter;
+import org.objectweb.asm.Label;
+import org.objectweb.asm.MethodVisitor;
+import org.objectweb.asm.Opcodes;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import static org.objectweb.asm.Opcodes.*;
+
+
+public class MethodCodeGen implements bytecode.visitor.MethodVisitor {
+
+    private ClassWriter classWriter;
+    private Mapper mapper;
+    private MethodVisitor methodVisitor;
+
+    private List<String> localVaribales;
+
+    public MethodCodeGen(ClassWriter classWriter) {
+        this.classWriter = classWriter;
+        mapper = new Mapper();
+        localVaribales = new ArrayList<>();
+    }
+
+
+    // Method nodes
+
+    @Override
+    public void visit(ConstructorNode constructorNode) {
+        methodVisitor =
+                classWriter.visitMethod(mapper.mapAccessTypeToOpcode(constructorNode.accessType),
+                        "<init>",
+                        mapper.generateMethodDescriptor(new BaseType(TypeEnum.VOID), constructorNode.parameters),
+                        null,
+                        null);
+
+        methodVisitor.visitCode();
+        localVaribales.add("this");
+        // Add all method parameters to localVariables
+        for (ParameterNode parameterNode : constructorNode.parameters) {
+            localVaribales.add(parameterNode.identifier);
+        }
+
+        methodVisitor.visitVarInsn(ALOAD, 0);
+        methodVisitor.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V", false);
+
+        // Visit all statements
+        for (IStatementNode statementNode : constructorNode.block.statements) {
+            if (statementNode != null) {
+                statementNode.accept(this);
+            }
+        }
+
+        methodVisitor.visitMaxs(0, 0);
+        methodVisitor.visitEnd();
+    }
+
+    @Override
+    public void visit(MainMethodNode mainMethodNode) {
+        methodVisitor = classWriter.visitMethod(mapper.mapAccessTypeToOpcode(mainMethodNode.accesModifier),
+                mainMethodNode.getIdentifier(),
+                "([Ljava/lang/String;)V",
+                null,
+                null);
+
+        methodVisitor.visitCode();
+        localVaribales.add("this");
+        localVaribales.add("args");
+
+        // Visit all statements
+        for (IStatementNode statementNode : mainMethodNode.block.statements) {
+            statementNode.accept(this);
+        }
+
+        methodVisitor.visitMaxs(0, 0);
+        methodVisitor.visitEnd();
+    }
+
+    @Override
+    public void visit(MethodNode methodNode) {
+        methodVisitor = classWriter.visitMethod(mapper.mapAccessTypeToOpcode(methodNode.accesModifier),
+                methodNode.getIdentifier(),
+                mapper.generateMethodDescriptor((BaseType) methodNode.getType(), methodNode.parameters),
+                null,
+                null);
+
+        methodVisitor.visitCode();
+        localVaribales.add("this");
+        // Add all method parameters to localVariables
+        for (ParameterNode parameterNode : methodNode.parameters) {
+            localVaribales.add(parameterNode.identifier);
+        }
+
+        // Visit all statements
+        for (IStatementNode statementNode : methodNode.block.statements) {
+            statementNode.accept(this);
+        }
+
+        methodVisitor.visitMaxs(0, 0);
+        methodVisitor.visitEnd();
+    }
+
+
+    // Binary expressions
+
+    @Override
+    public void visit(BinaryNode binaryNode) {
+        binaryNode.accept(this);
+    }
+
+    @Override
+    public void visit(CalculationNode calculationNode) {
+        if (calculationNode.dotExpression != null) {
+            calculationNode.dotExpression.accept(this);
+        }
+        if (calculationNode.calculationExpression != null) {
+            calculationNode.calculationExpression.accept(this);
+        }
+        if (calculationNode.operator != null) {
+            switch (calculationNode.operator) {
+                case PLUS:
+                    methodVisitor.visitInsn(IADD);
+                    break;
+                case MINUS:
+                    methodVisitor.visitInsn(ISUB);
+                    break;
+            }
+        }
+    }
+
+    @Override
+    public void visit(DotNode dotNode) {
+        if (dotNode.dotExpression != null) {
+            dotNode.dotExpression.accept(this);
+        }
+        if (dotNode.dotSubstractionExpression != null) {
+            dotNode.dotSubstractionExpression.accept(this);
+        }
+        if (dotNode.operator != null) {
+            switch (dotNode.operator) {
+                case DIV:
+                    methodVisitor.visitInsn(IDIV);
+                    break;
+                case MULT:
+                    methodVisitor.visitInsn(IMUL);
+                    break;
+                case MOD:
+                    methodVisitor.visitInsn(IREM);
+                    break;
+            }
+        }
+    }
+
+    @Override
+    public void visit(DotSubstractionNode dotSubstractionNode) {
+        if (dotSubstractionNode.value != null) {
+            dotSubstractionNode.value.accept(this);
+        } else if (dotSubstractionNode.identifier != null) {
+            methodVisitor.visitVarInsn(ILOAD, localVaribales.indexOf(dotSubstractionNode.identifier));
+        } else if (dotSubstractionNode.memberAccess != null) {
+            dotSubstractionNode.memberAccess.accept(this);
+        } else if (dotSubstractionNode.methodCall != null) {
+            dotSubstractionNode.methodCall.accept(this);
+        } else if (dotSubstractionNode.calculationExpression != null) {
+            dotSubstractionNode.calculationExpression.accept(this);
+        }
+    }
+
+    @Override
+    public void visit(NonCalculationNode nonCalculationNode) {
+        Label labelFalse = new Label();
+        Label labelTrue = new Label();
+        // TODO: Null check
+        switch (nonCalculationNode.operator) {
+            case AND:
+                nonCalculationNode.unaryExpression.accept(this);
+                methodVisitor.visitJumpInsn(IFEQ, labelFalse); // Value compared to 0 (false)
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IFEQ, labelFalse);
+                break;
+            case OR:
+                nonCalculationNode.unaryExpression.accept(this);
+                methodVisitor.visitJumpInsn(IFNE, labelTrue);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IFEQ, labelFalse);
+                break;
+            case GREATER:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPLE, labelFalse);
+                break;
+            case LESS:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPGE, labelFalse);
+                break;
+            case GREATER_EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPLT, labelFalse);
+                break;
+            case LESS_EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                methodVisitor.visitJumpInsn(IF_ICMPGT, labelFalse);
+                break;
+            case EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                if (nonCalculationNode.unaryExpression.getType() instanceof BaseType && nonCalculationNode.expression.getType() instanceof BaseType) {
+                    methodVisitor.visitJumpInsn(IF_ICMPNE, labelFalse);
+                } else {
+                    methodVisitor.visitJumpInsn(IF_ACMPNE, labelFalse);
+                }
+                break;
+            case NOT_EQUAL:
+                nonCalculationNode.unaryExpression.accept(this);
+                nonCalculationNode.expression.accept(this);
+                if (nonCalculationNode.unaryExpression.getType() instanceof BaseType && nonCalculationNode.expression.getType() instanceof BaseType) {
+                    methodVisitor.visitJumpInsn(IF_ACMPEQ, labelFalse);
+                } else {
+                    methodVisitor.visitJumpInsn(IF_ACMPEQ, labelFalse);
+                }
+                break;
+        }
+
+        Label labelEndLogicalExpression = new Label();
+
+        methodVisitor.visitLabel(labelTrue);
+        methodVisitor.visitInsn(ICONST_1); // true
+        methodVisitor.visitJumpInsn(GOTO, labelEndLogicalExpression);
+
+        methodVisitor.visitLabel(labelFalse);
+        methodVisitor.visitInsn(ICONST_0); // false
+
+        methodVisitor.visitLabel(labelEndLogicalExpression);
+    }
+
+
+    // Unary expressions
+
+    @Override
+    public void visit(MemberAccessNode memberAccessNode) {
+        if (memberAccessNode.thisExpr) {
+            // methodVisitor.visitFieldInsn(PUTFIELD, memberAccessNode.identifiers.get(0), memberAccessNode.identifiers.get(1), );
+        }
+    }
+
+    @Override
+    public void visit(NotNode notNode) {
+        Label labelFalse = new Label();
+        Label labelTrue = new Label();
+
+        notNode.expression.accept(this);
+        methodVisitor.visitJumpInsn(Opcodes.IFNE, labelFalse); // false if value is true (value != 0)
+
+        Label labelEndLogicalExpression = new Label();
+
+        methodVisitor.visitLabel(labelTrue);
+        methodVisitor.visitInsn(ICONST_1); // true
+        methodVisitor.visitJumpInsn(GOTO, labelEndLogicalExpression);
+
+        methodVisitor.visitLabel(labelFalse);
+        methodVisitor.visitInsn(ICONST_0); // false
+
+        methodVisitor.visitLabel(labelEndLogicalExpression);
+    }
+
+    @Override
+    public void visit(UnaryNode unaryNode) {
+        if (unaryNode.thisExp != null) {
+            methodVisitor.visitVarInsn(ALOAD, 0); // this
+        } else if (unaryNode.identifier != null) {
+            methodVisitor.visitVarInsn(ILOAD, localVaribales.indexOf(unaryNode.identifier));
+        } else if (unaryNode.memberAccess != null) {
+            unaryNode.memberAccess.accept(this);
+        } else if (unaryNode.value != null) {
+            unaryNode.value.accept(this);
+        } else if (unaryNode.notExpression != null) {
+            unaryNode.notExpression.accept(this);
+        } else if (unaryNode.statement != null) {
+            unaryNode.statement.accept(this);
+        } else if (unaryNode.expression != null) {
+            unaryNode.expression.accept(this);
+        }
+    }
+
+
+    // Statements
+
+    @Override
+    public void visit(IfElseNode ifElseNode) {
+        Label elseLabel = new Label();
+
+        Label[] elseIfLabels = new Label[ifElseNode.elseIfStatements.size()];
+        for (int i = 0; i < ifElseNode.elseIfStatements.size(); i++) {
+            elseIfLabels[i] = new Label();
+        }
+
+        ifElseNode.ifStatement.expression.accept(this);
+        if (ifElseNode.elseIfStatements.isEmpty()) {
+            // No else if
+            methodVisitor.visitJumpInsn(IFEQ, elseLabel);
+        } else {
+            // else if statements
+            methodVisitor.visitJumpInsn(IFEQ, elseIfLabels[0]);
+        }
+        ifElseNode.ifStatement.block.accept(this); // accept if block
+
+        Label endLabel = new Label();
+        methodVisitor.visitJumpInsn(GOTO, endLabel);
+
+        for (int i = 0; i < ifElseNode.elseIfStatements.size(); i++) {
+            methodVisitor.visitLabel(elseIfLabels[i]);
+            ifElseNode.elseIfStatements.get(i).expression.accept(this);
+            if (i + 1 < elseIfLabels.length) {
+                // at least one more else if
+                methodVisitor.visitJumpInsn(IFEQ, elseIfLabels[i + 1]);
+            } else {
+                methodVisitor.visitJumpInsn(IFEQ, elseLabel);
+            }
+            ifElseNode.elseIfStatements.get(i).block.accept(this);
+            methodVisitor.visitJumpInsn(GOTO, endLabel);
+        }
+
+        if (ifElseNode.elseStatement != null) {
+            methodVisitor.visitLabel(elseLabel);
+            ifElseNode.elseStatement.block.accept(this);
+        }
+
+        methodVisitor.visitLabel(endLabel);
+    }
+
+    @Override
+    public void visit(LocalVariableDeclarationNode localVariableDeclarationNode) {
+        if (localVariableDeclarationNode.expression != null) {
+            // Process expression
+            localVariableDeclarationNode.expression.accept(this);
+            // Store result of expression in variable
+            if (localVaribales.contains(localVariableDeclarationNode.identifier)) {
+                if (localVariableDeclarationNode.type instanceof BaseType) {
+                    methodVisitor.visitVarInsn(ISTORE, localVaribales.indexOf(localVariableDeclarationNode.identifier));
+                } else if (localVariableDeclarationNode.type instanceof ReferenceType) {
+                    methodVisitor.visitVarInsn(ASTORE, localVaribales.indexOf(localVariableDeclarationNode.identifier));
+                }
+            } else {
+                localVaribales.add(localVariableDeclarationNode.identifier);
+                if (localVariableDeclarationNode.type instanceof BaseType) {
+                    methodVisitor.visitVarInsn(ISTORE, localVaribales.indexOf(localVariableDeclarationNode.identifier));
+                } else if (localVariableDeclarationNode.type instanceof ReferenceType) {
+                    methodVisitor.visitVarInsn(ASTORE, localVaribales.indexOf(localVariableDeclarationNode.identifier));
+                }
+            }
+        } else {
+            if (!localVaribales.contains(localVariableDeclarationNode.identifier)) {
+                localVaribales.add(localVariableDeclarationNode.identifier);
+            }
+        }
+    }
+
+    @Override
+    public void visit(AssignNode assignNode) {
+        // Process expression
+        if (assignNode.expression instanceof IncrementNode) {
+            IncrementNode incrementNode = (IncrementNode) assignNode.expression;
+            if (incrementNode.crementType.equals(CrementType.PREFIX)) { // ++i
+                methodVisitor.visitIincInsn(localVaribales.indexOf(incrementNode.assignableExpression.identifier), 1);
+                assign(assignNode);
+            } else if (incrementNode.crementType.equals(CrementType.SUFFIX)) { // Suffix: i++
+                assign(assignNode);
+                methodVisitor.visitIincInsn(localVaribales.indexOf(incrementNode.assignableExpression.identifier), 1);
+            }
+        } else if (assignNode.expression instanceof DecrementNode) {
+            DecrementNode decrementNode = (DecrementNode) assignNode.expression;
+            if (decrementNode.crementType.equals(CrementType.PREFIX)) {
+                methodVisitor.visitIincInsn(localVaribales.indexOf(decrementNode.assignableExpression.identifier), -1);
+                assign(assignNode);
+            } else if (decrementNode.crementType.equals(CrementType.SUFFIX)) {
+                assign(assignNode);
+                methodVisitor.visitIincInsn(localVaribales.indexOf(decrementNode.assignableExpression.identifier), 1);
+            }
+        } else {
+            assignNode.expression.accept(this);
+        }
+    }
+
+    private void assign(AssignNode assignNode) {
+        // Store result of expression in variable
+        if (assignNode.assignable.memberAccess.thisExpr) {
+            // Global var
+            methodVisitor.visitVarInsn(ALOAD, 0);
+            if (assignNode.expression instanceof BaseType) {
+                //methodVisitor.visitFieldInsn(PUTFIELD, class name, var identifier, mapper.getTypeChar(((BaseTypeNode) type).enumType));
+            } else if (assignNode.expression instanceof ReferenceType) {
+                //methodVisitor.visitFieldInsn(PUTFIELD, class name, var identifier, "L"class name object +";");
+            }
+        } else {
+            // Local var
+            if (assignNode.expression instanceof BaseType) {
+                methodVisitor.visitVarInsn(ISTORE, localVaribales.indexOf(assignNode.assignable.identifier));
+            } else if (assignNode.expression instanceof ReferenceType) {
+                methodVisitor.visitVarInsn(ASTORE, localVaribales.indexOf(assignNode.assignable.identifier));
+            }
+        }
+    }
+
+    @Override
+    public void visit(NewDeclarationNode newDeclarationNode) {
+        methodVisitor.visitTypeInsn(NEW, newDeclarationNode.identifier);
+        methodVisitor.visitInsn(DUP);
+        for (IExpressionNode expressionNode : newDeclarationNode.expressions) {
+            expressionNode.accept(this);
+        }
+        // TODO
+        //methodVisitor.visitMethodInsn(INVOKESPECIAL, class name, "<init>", mapper.generateMethodDescriptor(), false);
+        // TODO: kann ein Field auch definiert werden? Abfrage ob local var oder field
+        localVaribales.add(newDeclarationNode.identifier);
+    }
+
+    @Override
+    public void visit(ValueNode valueNode) {
+        switch (valueNode.valueType) {
+            case INT_VALUE:
+                int intValue = Integer.parseInt(valueNode.value);
+                if (intValue >= Byte.MIN_VALUE && intValue <= Byte.MAX_VALUE) { // load int as byte
+                    methodVisitor.visitIntInsn(BIPUSH, intValue);
+                } else if (intValue >= Short.MIN_VALUE && intValue <= Short.MAX_VALUE) { // load int as short
+                    methodVisitor.visitIntInsn(SIPUSH, intValue);
+                } else { // load int as const
+                    methodVisitor.visitLdcInsn(intValue);
+                }
+                break;
+            case BOOLEAN_VALUE:
+                if (valueNode.value.equals("true")) {
+                    methodVisitor.visitInsn(ICONST_1);
+                } else {
+                    methodVisitor.visitInsn(ICONST_0);
+                }
+                break;
+            case CHAR_VALUE:
+                char charValue = valueNode.value.charAt(0);
+                if (charValue <= Byte.MAX_VALUE) { // load char as byte
+                    methodVisitor.visitIntInsn(BIPUSH, charValue);
+                } else if (charValue <= Short.MAX_VALUE) { // load char as short
+                    methodVisitor.visitIntInsn(SIPUSH, charValue);
+                } else { // load char as const
+                    methodVisitor.visitLdcInsn(charValue);
+                }
+                break;
+            case NULL_VALUE:
+                methodVisitor.visitInsn(ACONST_NULL);
+                break;
+        }
+    }
+
+    @Override
+    public void visit(ReturnNode returnNode) {
+        if (returnNode.voidReturn) { // Return nothing
+            methodVisitor.visitInsn(RETURN);
+        } else { // Return something
+            // Process expression
+            returnNode.expression.accept(this);
+            // Return result of expression
+            if (returnNode.expression.getType() instanceof BaseType) {
+                methodVisitor.visitInsn(IRETURN);
+            } else if (returnNode.expression.getType() instanceof ReferenceType) {
+                methodVisitor.visitInsn(ARETURN);
+            }
+        }
+    }
+
+
+    @Override
+    public void visit(WhileNode whileNode) {
+        Label loopLabel = new Label();
+        Label endOfLoopLabel = new Label();
+
+        methodVisitor.visitLabel(loopLabel);
+        // while loop
+        whileNode.expression.accept(this);
+        methodVisitor.visitJumpInsn(IFEQ, endOfLoopLabel); // if condition is false, jump out of loop
+
+        // TODO: Unterscheidung bei increment/decrement der for Schleife
+        if (whileNode.block.statements.size() == 2) { // For loop
+            whileNode.block.statements.get(0).accept(this);
+
+        } else {
+            whileNode.block.statements.get(0).accept(this);
+        }
+        whileNode.block.accept(this);
+        methodVisitor.visitJumpInsn(GOTO, loopLabel);
+
+        methodVisitor.visitLabel(endOfLoopLabel);
+    }
+
+    @Override
+    public void visit(ChainedMethodNode chainedMethodNode) {
+
+    }
+
+    @Override
+    public void visit(MethodCallNode methodCallNode) {
+
+    }
+
+    @Override
+    public void visit(TargetNode targetNode) {
+
+    }
+}

src/main/java/bytecode/visitor/ClassVisitor.java

@@ -0,0 +1,10 @@
+package bytecode.visitor;
+
+import ast.ClassNode;
+import ast.members.FieldNode;
+
+public interface ClassVisitor {
+    void visit(ClassNode classNode);
+
+    void visit(FieldNode fieldNode);
+}

src/main/java/bytecode/visitor/MethodVisitor.java

@@ -0,0 +1,57 @@
+package bytecode.visitor;
+
+import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.NotNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.members.ConstructorNode;
+import ast.members.MainMethodNode;
+import ast.members.MethodNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.NewDeclarationNode;
+import ast.statementexpressions.crementexpressions.DecrementNode;
+import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.ChainedMethodNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
+import ast.statements.*;
+import ast.type.ValueNode;
+
+public interface MethodVisitor {
+    // members
+    void visit(ConstructorNode constructorNode);
+    void visit(MethodNode methodNode);
+    void visit(MainMethodNode mainMethodNode);
+
+    // Binary expressions
+    void visit(BinaryNode binaryNode);
+    void visit(CalculationNode calculationNode);
+    void visit(DotNode dotNode);
+    void visit(DotSubstractionNode dotSubstractionNode);
+    void visit(NonCalculationNode nonCalculationNode);
+
+    // Unary expressions
+    void visit(MemberAccessNode memberAccessNode);
+    void visit(NotNode notExpressionNode);
+    void visit(UnaryNode unaryExpressionNode);
+
+    // statements
+    void visit(IfElseNode ifElseNode);
+
+    void visit(LocalVariableDeclarationNode localVariableDeclarationNode);
+    void visit(ReturnNode returnNode);
+    void visit(WhileNode whileNode);
+
+    // statement expression
+    void visit(ChainedMethodNode chainedMethodNode);
+    void visit(MethodCallNode methodCallNode);
+    void visit(TargetNode targetNode);
+
+    void visit(AssignNode assignNode);
+    void visit(NewDeclarationNode newDeclarationNode);
+
+    // type
+    void visit(ValueNode valueNode);
+
+}

src/main/java/bytecode/visitor/ProgramVisitor.java

@@ -0,0 +1,7 @@
+package bytecode.visitor;
+
+import ast.ProgramNode;
+
+public interface ProgramVisitor {
+  void visit(ProgramNode programNode);
+}

src/main/java/main/Main.java

@@ -0,0 +1,106 @@
+package main;
+
+import ast.ASTNode;
+import ast.ProgramNode;
+import parser.astBuilder.ASTBuilder;
+import parser.generated.SimpleJavaLexer;
+import parser.generated.SimpleJavaParser;
+import semantic.SemanticAnalyzer;
+import bytecode.ByteCodeGenerator;
+
+import org.antlr.v4.runtime.*;
+import org.antlr.v4.runtime.tree.ParseTree;
+
+import java.io.IOException;
+import java.nio.file.Paths;
+
+
+/**
+ * Start Raupenpiler using make:
+ * <p> <code> cd .\src\test\ </code>
+ * <p> <code> make clean compile-raupenpiler </code>
+ * <p> Start Raupenpiler using jar:
+ * <p> <code> java.exe -jar path_to_jar\JavaCompiler-1.0-jar-with-dependencies.jar 'path_to_input_file.java' 'path_to_output_directory' </code>
+ * <p> Example (jar needs to be in the target directory, compile with make or mvn package first):
+ * <code> java.exe -jar .\target\JavaCompiler-1.0-jar-with-dependencies.jar 'src/main/resources/input/CompilerInput.java' 'src/main/resources/output' </code>
+ */
+public class Main {
+    public static void main(String[] args) throws Exception {
+        if (args.length == 2) {
+            // args[0] is the input file path
+            // args[1] is the output directory path
+            String inputFilePath = args[0];
+            String outputDirectoryPath = args[1];
+            System.out.println("Compiling file: " + inputFilePath);
+            try {
+                CharStream inputCharStream = CharStreams.fromPath(Paths.get(inputFilePath));
+                compileFile(inputCharStream, outputDirectoryPath);
+            } catch (IOException e) {
+                System.err.println("Error reading the file: " + e.getMessage());
+            }
+        }
+        /*        !!! Else Branch (main ohne args starten) ist nicht zur Verwendung vorgesehen, immer mit args starten !!!
+        else {
+            try {
+                CharStream codeCharStream = CharStreams.fromPath(Paths.get("src/main/resources/input/CompilerInput.java"));
+                compileFile(codeCharStream);
+            } catch (IOException e) {
+                System.err.println("Error reading the file: " + e.getMessage());
+            }
+        }
+        */
+    }
+
+    /**
+     * This method is used to compile a file from a given CharStream and output the bytecode to a specified directory.
+     * It goes through the following steps:
+     * <p>1. Scanner: It uses the SimpleJavaLexer to tokenize the input CharStream.
+     * <p>2. Parser: It uses the SimpleJavaParser to parse the tokens and generate a ParseTree.
+     * <p>3. AST Builder: It uses the ASTBuilder to visit the ParseTree and generate an Abstract Syntax Tree (AST).
+     * <p>4. Semantic Analyzer: It uses the SemanticAnalyzer to generate a typed AST.
+     * <p>5. Bytecode Generator: It uses the ByteCodeGenerator to generate bytecode from the typed AST and output it to the specified directory.
+     *
+     * @param inputCharStream     The CharStream representing the input file to be compiled.
+     * @param outputDirectoryPath The path of the directory where the output bytecode should be written.
+     */
+    static void compileFile(CharStream inputCharStream, String outputDirectoryPath) {
+        // Initialize the logger
+        new RaupenLogger();
+
+        /* ------------------------- Scanner -> tokens ------------------------- */
+        // Use the SimpleJavaLexer to tokenize the input CharStream
+        SimpleJavaLexer lexer = new SimpleJavaLexer(inputCharStream);
+        CommonTokenStream tokenStream = new CommonTokenStream(lexer);
+        tokenStream.fill();
+        // Log the tokens
+        RaupenLogger.logScanner(tokenStream);
+
+        /*------------------------- Parser -> Parsetree -------------------------*/
+        // Use the SimpleJavaParser to parse the tokens and generate a ParseTree
+        SimpleJavaParser parser = new SimpleJavaParser(tokenStream);
+        ParseTree parseTree = parser.program(); // parse the input
+        // Log the ParseTree
+        RaupenLogger.logParser(parseTree, parser);
+
+        /*------------------------- AST builder -> AST -------------------------*/
+        // Use the ASTBuilder to visit the ParseTree and generate an Abstract Syntax Tree (AST)
+        ASTBuilder astBuilder = new ASTBuilder();
+        ASTNode abstractSyntaxTree = astBuilder.visit(parseTree);
+        // Log the AST
+        RaupenLogger.logAST(abstractSyntaxTree);
+
+        /*------------------------- Semantic Analyzer -> typed AST -------------------------*/
+        // Use the SemanticAnalyzer to generate a typed AST
+        //ASTNode typedAst = SemanticAnalyzer.generateTast(abstractSyntaxTree);
+        // Log the typed AST
+        RaupenLogger.logSemanticAnalyzer(abstractSyntaxTree);
+
+        /*------------------------- Bytecode Generator -> Bytecode -------------------------*/
+        // Use the ByteCodeGenerator to generate bytecode from the typed AST and output it to the specified directory
+        ByteCodeGenerator byteCodeGenerator = new ByteCodeGenerator(outputDirectoryPath, true, true);
+        assert abstractSyntaxTree != null;
+        byteCodeGenerator.visit((ProgramNode) abstractSyntaxTree);
+        // Log the bytecode generation
+        RaupenLogger.logBytecodeGenerator();
+    }
+}

src/main/java/main/RaupenLogger.java

@@ -0,0 +1,180 @@
+package main;
+
+import ast.ASTNode;
+import org.antlr.v4.runtime.CommonTokenStream;
+import org.antlr.v4.runtime.Parser;
+import org.antlr.v4.runtime.RuleContext;
+import org.antlr.v4.runtime.Token;
+import org.antlr.v4.runtime.tree.ParseTree;
+import parser.generated.SimpleJavaLexer;
+import parser.generated.SimpleJavaParser;
+
+import java.io.IOException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.List;
+import java.util.logging.*;
+
+/**
+ * Beispiel für Logging-Arten:
+ * <p><code>logger.severe("Schwerwiegender Fehler");</code>
+ * <p><code>logger.warning("Warnung");</code>
+ * <p><code>logger.info("Information");</code>
+ * <p><code>logger.config("Konfigurationshinweis");</code>
+ * <p><code>logger.fine("Fein");</code>
+ * <p><code>logger.finer("Feiner");</code>
+ * <p><code>logger.finest("Am feinsten");</code>
+ * <p>You may toggle the logging level of the console and file handlers by
+ * changing the level ALL/OFF/etc. in the constructor.
+ * <code>consoleHandler.setLevel(Level.OFF);</code>
+ * <code>fileHandler.setLevel(Level.ALL);</code>
+ */
+public class RaupenLogger {
+
+    static Logger logger = Logger.getLogger("RaupenLogs");
+
+    public RaupenLogger() {
+        // ------------------------- Logging -------------------------
+        logger.setLevel(Level.ALL);
+        logger.getParent().getHandlers()[0].setLevel(Level.ALL);
+        logger.setUseParentHandlers(false);
+
+        // Custom formatter class
+        class CustomFormatter extends Formatter {
+            private final SimpleDateFormat dateFormat = new SimpleDateFormat("HH:mm:ss dd-MM-yyyy");
+
+            @Override
+            public String format(LogRecord record) {
+                return formatMessage(record) + System.lineSeparator();
+            }
+
+            @Override
+            public String getHead(Handler h) {
+                Date now = new Date();
+                String dateTime = dateFormat.format(now);
+                return "Log Start Time: " + dateTime + "\n"
+                        + "Logger Name: " + h.getFormatter().getClass().getName() + "\n\n";
+            }
+        }
+
+        try {
+            // Configure console handler
+            Handler consoleHandler = new ConsoleHandler();
+            // Toggle console logging on/off
+            consoleHandler.setLevel(Level.OFF);
+            consoleHandler.setFormatter(new CustomFormatter());
+            logger.addHandler(consoleHandler);
+
+            // Configure file handler
+            Handler fileHandler = new FileHandler("src/main/resources/logs/RaupenLog.log");
+            // Toggle file logging on/off
+            fileHandler.setLevel(Level.ALL);
+            fileHandler.setFormatter(new CustomFormatter());
+            logger.addHandler(fileHandler);
+
+        } catch (SecurityException | IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    public static void logScanner(CommonTokenStream tokenStream) {
+        // Printing the tokens
+        logger.info("-------------------- Scanner -> Tokens --------------------");
+        List<Token> tokens = tokenStream.getTokens();
+        for (Token token : tokens) {
+            String tokenType =
+                    SimpleJavaLexer.VOCABULARY.getSymbolicName(token.getType());
+            String tokenText = token.getText();
+            // logger.info("Token Type: " + tokenType + ", Token Text: " + tokenText);
+            logger.info(tokenType + " " + tokenText);
+        }
+        logger.info("\n");
+    }
+
+    public static void logParser(ParseTree parseTree, SimpleJavaParser parser) {
+        // Printing the parse tree
+        logger.info("-------------------- Parser -> Parsetree  --------------------");
+        logger.info(parseTree.toStringTree(parser)); //one line representation
+        logTree(parseTree, parser, 0);
+        logger.info("\n");
+    }
+
+    public static void logAST(ASTNode abstractSyntaxTree) {
+        // Printing the AST
+        logger.info("-------------------- AST builder -> AST  --------------------");
+        // logger.info("AST: " + ast.toString());
+        logAST(abstractSyntaxTree, 0);
+        logger.info("\n");
+    }
+
+    public static void logSemanticAnalyzer(ASTNode typedAst) {
+        // Printing the typed AST
+        logger.info("-------------------- Semantic Analyzer -> typed AST  --------------------");
+        logAST(typedAst, 0);
+        logger.info("\n");
+    }
+
+    public static void logBytecodeGenerator() {
+        // Printing the bytecode
+        logger.info("-------------------- Bytecode Generator -> Bytecode  --------------------");
+        logger.info("Bytecode generated");
+        logger.info("\n");
+    }
+
+
+
+
+
+
+
+
+
+    /* ------------------------- Printing methods ------------------------- */
+
+    /**
+     * This method is used to print the parse tree in a structured format.
+     * It recursively traverses the tree and prints the rule names and text of the
+     * nodes.
+     *
+     * @param tree   The parse tree to be printed.
+     * @param parser The parser used to parse the input. It's used to get the rule
+     *               names.
+     * @param indent The current indentation level. It's used to format the output.
+     */
+    public static void logTree(ParseTree tree, Parser parser, int indent) {
+        // Create an indentation string based on the current indentation level
+        String indentString = " ".repeat(indent * 2);
+
+        // If the tree node is an instance of RuleContext (i.e., it's an internal node),
+        // print the rule name
+        if (tree instanceof RuleContext) {
+            int ruleIndex = ((RuleContext) tree).getRuleIndex();
+            String ruleName = parser.getRuleNames()[ruleIndex];
+            logger.info(indentString + ruleName);
+        } else {
+            // If the tree node is not an instance of RuleContext (i.e., it's a leaf node),
+            // print the text of the node
+            logger.info(indentString + tree.getText());
+        }
+
+        // Recursively print the children of the current node, increasing the
+        // indentation level
+        for (int i = 0; i < tree.getChildCount(); i++) {
+            logTree(tree.getChild(i), parser, indent + 1);
+        }
+    }
+
+    // TODO: Fix this method
+    public static void logAST(ASTNode abstractSyntaxTree, int indent) {
+        if (abstractSyntaxTree == null) {
+            logger.severe("AST is null !!!");
+            return;
+        }
+        String indentString = " ".repeat(indent * 2);
+        logger.info(indentString + abstractSyntaxTree.getClass());
+        //for (ASTNode child : abstractSyntaxTree.getChildren()) {
+        //    logAST(child, indent + 1);
+       // }
+
+    }
+}

src/main/java/parser/ASTBuilder.java

@@ -1,20 +0,0 @@
-package parser;
-
-import parser.generated.SimpleJavaBaseVisitor;
-import parser.generated.SimpleJavaParser;
-
-public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
-    @Override
-    public ASTNode visitProgram(SimpleJavaParser.ProgramContext ctx) {
-        ProgramNode program = new ProgramNode();
-        for (SimpleJavaParser.ClassDeclarationContext classDeclCtx : ctx.classDeclaration()) {
-            program.addClass((ClassDeclarationNode) visit(classDeclCtx));
-        }
-        return program;
-    }
-
-    @Override
-    public ASTNode visitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx) {
-        return new ClassDeclarationNode(ctx.IDENTIFIER().getText());
-    }
-}

src/main/java/parser/ASTNode.java

@@ -1,8 +0,0 @@
-package parser;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public abstract class ASTNode { }
-
-

src/main/java/parser/ClassDeclarationNode.java

@@ -1,11 +0,0 @@
-package parser;
-
-import parser.ASTNode;
-
-public class ClassDeclarationNode extends ASTNode {
-    public String identifier;
-
-    public ClassDeclarationNode(String identifier) {
-        this.identifier = identifier;
-    }
-}

src/main/java/parser/Main.java

@@ -1,30 +0,0 @@
-package parser;
-
-import org.antlr.v4.runtime.CharStream;
-import org.antlr.v4.runtime.CharStreams;
-import org.antlr.v4.runtime.CommonTokenStream;
-import org.antlr.v4.runtime.tree.ParseTree;
-import parser.generated.SimpleJavaLexer;
-import parser.generated.SimpleJavaParser;
-
-public class Main {
-    public static void main(String[] args) throws Exception {
-        // Assuming args[0] contains the path to the input file
-        CharStream codeCharStream = CharStreams.fromString("class Test { }");
-        SimpleJavaLexer lexer = new SimpleJavaLexer(codeCharStream);
-        CommonTokenStream tokens = new CommonTokenStream(lexer);
-        SimpleJavaParser parser = new SimpleJavaParser(tokens);
-
-        ParseTree tree = parser.program(); // parse the input
-
-        ASTBuilder builder = new ASTBuilder();
-        ProgramNode ast = (ProgramNode) builder.visit(tree); // build the AST
-
-        // Optionally print or process the AST
-        System.out.println("Parsed " + ast.classes.size() + " classes.");
-        System.out.println(ast.classes.get(0).identifier);
-
-        //ByteCodeGenerator byteCodeGenerator = new ByteCodeGenerator();
-        //byteCodeGenerator.generateByteCode(ast);
-    }
-}

src/main/java/parser/ProgramNode.java

@@ -1,15 +0,0 @@
-package parser;
-
-import parser.ASTNode;
-import parser.ClassDeclarationNode;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class ProgramNode extends ASTNode {
-    public List<ClassDeclarationNode> classes = new ArrayList<>();
-
-    public void addClass(ClassDeclarationNode classNode) {
-        classes.add(classNode);
-    }
-}

src/main/java/parser/SimpleJava.g4

@@ -1,9 +0,0 @@
-grammar SimpleJava;
-
-program : classDeclaration+;
-
-classDeclaration : 'class' IDENTIFIER '{' '}';
-
-IDENTIFIER : [a-zA-Z][a-zA-Z0-9_]*;
-
-WS : [ \t\r\n]+ -> skip;

src/main/java/parser/Test.txt

@@ -1 +0,0 @@
-class Test { }

src/main/java/parser/astBuilder/ASTBuilder.java

@@ -0,0 +1,604 @@
+package parser.astBuilder;
+
+import ast.*;
+
+import ast.expressions.IExpressionNode;
+import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.NotNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.members.*;
+import ast.parameters.ParameterNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.IStatementExpressionNode;
+import ast.statementexpressions.NewDeclarationNode;
+import ast.statementexpressions.crementexpressions.CrementType;
+import ast.statementexpressions.crementexpressions.DecrementNode;
+import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.ChainedMethodNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
+import ast.statements.*;
+import ast.type.AccessModifierNode;
+import ast.type.type.*;
+import ast.type.EnumValueNode;
+import ast.type.ValueNode;
+import org.antlr.v4.runtime.tree.TerminalNode;
+import parser.generated.*;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ASTBuilder extends SimpleJavaBaseVisitor<ASTNode> {
+    @Override
+    public ASTNode visitProgram(SimpleJavaParser.ProgramContext ctx) {
+        ProgramNode program = new ProgramNode();
+        for (SimpleJavaParser.ClassDeclarationContext classDeclCtx : ctx.classDeclaration()) {
+            program.addClass((ClassNode) visit(classDeclCtx));
+        }
+        return program;
+    }
+
+    @Override
+    public ASTNode visitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx) {
+        ClassNode classNode;
+        if(ctx.AccessModifier() != null){
+            classNode = new ClassNode(ctx.AccessModifier().getText(), ctx.Identifier().getText());
+        }
+        else{
+            classNode = new ClassNode("public", ctx.Identifier().getText());
+        }
+
+        boolean hasConstructor = false;
+
+        for (SimpleJavaParser.MemberDeclarationContext member : ctx.memberDeclaration()) {
+            MemberNode memberNode = (MemberNode) visit(member);
+            if(memberNode != null) {
+                if(memberNode instanceof ConstructorNode){
+                    hasConstructor = true;
+                }
+                classNode.addMember(memberNode);
+            }
+        }
+
+        if(!hasConstructor){
+            BlockNode blockNode = new BlockNode();
+            blockNode.addStatement(new ReturnNode(null));
+            classNode.members.addFirst(new ConstructorNode("public", ctx.Identifier().getText(), blockNode));
+        }
+
+        return classNode;
+    }
+
+    @Override
+    public ASTNode visitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx) {
+        ConstructorNode constructorNode;
+        if(ctx.AccessModifier() != null) {
+            constructorNode = new ConstructorNode(ctx.AccessModifier().getText(), ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+        } else {
+            constructorNode = new ConstructorNode("public", ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+        }
+        if(ctx.parameterList() != null) {
+            for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                constructorNode.addParameter((ParameterNode) visit(parameter));
+            }
+        }
+        constructorNode.block.addStatement(new ReturnNode(null));
+        return constructorNode;
+    }
+
+    @Override
+    public ASTNode visitMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx) {
+        if(ctx.MainMethodDeclaration() != null) {
+            MainMethodNode mainMethod = new MainMethodNode((BlockNode) visit(ctx.blockStatement()));
+            mainMethod.block.addStatement(new ReturnNode(null));
+            return mainMethod;
+        } else {
+            if(ctx.type() != null) {
+                if(ctx.AccessModifier() != null) {
+                    MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    return methodNode;
+                } else {
+                    MethodNode methodNode = new MethodNode("public", createTypeNode(ctx.type().getText()), false, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    return methodNode;
+                }
+            } else {
+                if(ctx.AccessModifier() != null) {
+                    MethodNode methodNode = new MethodNode(ctx.AccessModifier().getText(), null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    methodNode.block.addStatement(new ReturnNode(null));
+                    return methodNode;
+                } else {
+                    MethodNode methodNode = new MethodNode("public", null, true, ctx.Identifier().getText(), (BlockNode) visit(ctx.blockStatement()));
+                    if(ctx.parameterList() != null) {
+                        for(SimpleJavaParser.ParameterContext parameter : ctx.parameterList().parameter()) {
+                            methodNode.addParameter((ParameterNode) visit(parameter));
+                        }
+                    }
+                    methodNode.block.addStatement(new ReturnNode(null));
+                    return methodNode;
+                }
+            }
+        }
+    }
+
+    @Override
+    public ASTNode visitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx) {
+        if(ctx.AccessModifier() != null) {
+            return new FieldNode(new AccessModifierNode(ctx.AccessModifier().getText()), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        } else {
+            return new FieldNode(new AccessModifierNode("public"), createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+        }
+    }
+
+    @Override
+    public ASTNode visitParameter(SimpleJavaParser.ParameterContext ctx) {
+        return new ParameterNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText());
+    }
+
+    @Override
+    public ASTNode visitStatement(SimpleJavaParser.StatementContext ctx) {
+        if(ctx.returnStatement() != null) {
+            return visitReturnStatement(ctx.returnStatement());
+        } else if(ctx.localVariableDeclaration() != null) {
+            return visitLocalVariableDeclaration(ctx.localVariableDeclaration());
+        } else if(ctx.blockStatement() != null) {
+            return visitBlockStatement(ctx.blockStatement());
+        } else if(ctx.whileStatement() != null) {
+            return visitWhileStatement(ctx.whileStatement());
+        } else if(ctx.doWhileStatement() != null) {
+            return visitDoWhileStatement(ctx.doWhileStatement());
+        } else if(ctx.forStatement() != null) {
+            return visitForStatement(ctx.forStatement());
+        } else if(ctx.ifElseStatement() != null) {
+            return visitIfElseStatement(ctx.ifElseStatement());
+        } else if(ctx.switchStatement() != null) {
+            return visitSwitchStatement(ctx.switchStatement());
+        } else if(ctx.statementExpression() != null) {
+            return visitStatementExpression(ctx.statementExpression());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitReturnStatement(SimpleJavaParser.ReturnStatementContext ctx) {
+        return new ReturnNode((IExpressionNode) visit(ctx.expression()));
+    }
+
+    @Override
+    public ASTNode visitLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx) {
+        if(ctx.Assign() != null) {
+            return new LocalVariableDeclarationNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText(), ctx.Assign().getText(), (IExpressionNode) visit(ctx.expression()));
+        } else {
+            return new LocalVariableDeclarationNode(createTypeNode(ctx.type().getText()), ctx.Identifier().getText(), null, null);
+        }
+
+    }
+
+    @Override
+    public ASTNode visitBlockStatement(SimpleJavaParser.BlockStatementContext ctx) {
+        BlockNode blockNode = new BlockNode();
+        for(SimpleJavaParser.StatementContext statement : ctx.statement()) {
+            blockNode.addStatement((IStatementNode) visit(statement));
+        }
+        return blockNode;
+    }
+
+    @Override
+    public ASTNode visitWhileStatement(SimpleJavaParser.WhileStatementContext ctx) {
+        return new WhileNode((IExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.blockStatement()));
+    }
+
+    @Override
+    public ASTNode visitDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx) {
+        IExpressionNode condition = (IExpressionNode) visit(ctx.expression());
+        BlockNode doBlock = (BlockNode) visit(ctx.blockStatement());
+
+        WhileNode While = new WhileNode(condition, doBlock);
+        BlockNode resultBlock = new BlockNode();
+        resultBlock.addStatement((IStatementNode) doBlock);
+        resultBlock.addStatement((IStatementNode) While);
+
+        return resultBlock;
+    }
+
+    @Override
+    public ASTNode visitForStatement(SimpleJavaParser.ForStatementContext ctx) {
+        List<IStatementNode> statements = new ArrayList<>();
+
+        // Initialisierung
+        int i = 0;
+        if (ctx.localVariableDeclaration() != null) {
+            statements.add((IStatementNode) visit(ctx.localVariableDeclaration()));
+        } else if (ctx.statementExpression(i) != null) {
+            statements.add((IStatementNode) visit(ctx.statementExpression(i)));
+            i++;
+        }
+
+        // Bedingung
+        IExpressionNode condition = (IExpressionNode) visit(ctx.expression());
+
+        // Inkrement
+        IStatementExpressionNode crement = null;
+        boolean isPrefix = false;
+        if (ctx.statementExpression(i) != null) {
+            crement = (IStatementExpressionNode) visit(ctx.statementExpression(i));
+
+            if (crement instanceof IncrementNode) {
+                isPrefix = ((IncrementNode) crement).crementType == CrementType.PREFIX;
+            } else if (crement instanceof DecrementNode) {
+                isPrefix = ((DecrementNode) crement).crementType == CrementType.PREFIX;
+            }
+        }
+
+        BlockNode forBlock = (BlockNode) visit(ctx.blockStatement());
+
+        // While-Schleife
+        BlockNode whileBody = new BlockNode();
+
+        // Prä-Inkrement: Das Inkrement kommt vor dem Block
+        if (crement != null && isPrefix) {
+            whileBody.addStatement((IStatementNode) crement);
+        }
+
+        // Block Statements der For-Schleife in den While-Block kopieren
+        for (IStatementNode statement : forBlock.statements) {
+            whileBody.addStatement(statement);
+        }
+
+        // Post-Inkrement: Das Inkrement kommt nach dem Block
+        if (crement != null && !isPrefix) {
+            whileBody.addStatement((IStatementNode) crement);
+        }
+
+        // Bedingung der While-Schleife
+        WhileNode whileNode = new WhileNode(condition, whileBody);
+
+        statements.add(whileNode);
+
+        BlockNode resultBlock = new BlockNode();
+        for (IStatementNode statement : statements) {
+            resultBlock.addStatement((IStatementNode) statement);
+        }
+
+        return resultBlock;
+    }
+
+    @Override
+    public ASTNode visitIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx) {
+        IfElseNode ifElseStatementNode =  new IfElseNode((IfNode) visit(ctx.ifStatement()),
+                (ElseNode) visit(ctx.elseStatement()));
+
+        for (SimpleJavaParser.ElseIfStatementContext elseIf : ctx.elseIfStatement()){
+            ifElseStatementNode.addElseIfStatement(((IfNode) visit(elseIf)));
+        }
+
+        return ifElseStatementNode;
+    }
+
+    @Override
+    public ASTNode visitIfStatement(SimpleJavaParser.IfStatementContext ctx) {
+        return new IfNode((IExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.blockStatement()));
+    }
+
+    @Override
+    public ASTNode visitElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx) {
+        return new IfNode((IExpressionNode) visit(ctx.expression()), (BlockNode) visit(ctx.blockStatement()));
+    }
+
+    @Override
+    public ASTNode visitElseStatement(SimpleJavaParser.ElseStatementContext ctx) {
+        return new ElseNode((BlockNode) visit(ctx.blockStatement()));
+    }
+
+    @Override
+    public ASTNode visitStatementExpression(SimpleJavaParser.StatementExpressionContext ctx) {
+        if(ctx.assign() != null) {
+            return visitAssign(ctx.assign());
+        } else if(ctx.newDeclaration() != null) {
+            return visitNewDeclaration(ctx.newDeclaration());
+        } else if(ctx.methodCall() != null) {
+            return visitMethodCall(ctx.methodCall());
+        } else if(ctx.crementExpression() != null) {
+            return visitCrementExpression(ctx.crementExpression());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) {
+        UnaryNode switchExpression = (UnaryNode) visit(ctx.expression());
+
+        List<IfNode> ifNodes = new ArrayList<>();
+
+        for (SimpleJavaParser.CaseStatementContext caseCtx : ctx.caseStatement()) {
+            IExpressionNode caseExpression = (IExpressionNode) visit(caseCtx.value());
+
+            // Condition as NonCalculationNode -> Equals Expression
+            NonCalculationNode condition = new NonCalculationNode(switchExpression, "==", caseExpression);
+
+            BlockNode caseBlock = new BlockNode();
+            for (SimpleJavaParser.StatementContext stmtCtx : caseCtx.statement()) {
+                caseBlock.addStatement((IStatementNode) visit(stmtCtx));
+            }
+
+            // Each case as if
+            IfNode ifNode = new IfNode(condition, caseBlock);
+            ifNodes.add(ifNode);
+        }
+
+        // Check if has Default
+        ElseNode defaulElseNode = null;
+        if (ctx.defaultStatement() != null) {
+            BlockNode defaultBlock = new BlockNode();
+            for (SimpleJavaParser.StatementContext stmtCtx : ctx.defaultStatement().statement()) {
+                defaultBlock.addStatement((IStatementNode) visit(stmtCtx));
+            }
+            // Default als letztes Else Statement
+            defaulElseNode = new ElseNode(defaultBlock);
+        }
+
+        IfElseNode ifElseNode = new IfElseNode(ifNodes.getFirst(),defaulElseNode);
+        ifNodes.removeFirst();
+
+        for (IfNode ifNode : ifNodes){
+            ifElseNode.addElseIfStatement(ifNode);
+        }
+
+        return ifElseNode;
+    }
+
+    @Override
+    public ASTNode visitAssign(SimpleJavaParser.AssignContext ctx) {
+        return new AssignNode((AssignableNode) visit(ctx.assignableExpression()), (IExpressionNode) visit(ctx.expression()));
+    }
+
+    @Override
+    public ASTNode visitNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx) {
+        NewDeclarationNode newDeclarationNode = new NewDeclarationNode(ctx.Identifier().getText());
+        for(SimpleJavaParser.ExpressionContext expression : ctx.argumentList().expression()) {
+            newDeclarationNode.addExpression((IExpressionNode) visit(expression));
+        }
+        return newDeclarationNode;
+    }
+
+    @Override
+    public ASTNode visitMethodCall(SimpleJavaParser.MethodCallContext ctx) {
+        MethodCallNode methodCallStatementExpressionNode;
+        if(ctx.target() != null) {
+            methodCallStatementExpressionNode = new MethodCallNode((TargetNode) visit(ctx.target()), ctx.Identifier().getText());
+        } else {
+            methodCallStatementExpressionNode = new MethodCallNode(null, ctx.Identifier().getText());
+        }
+        for(SimpleJavaParser.ChainedMethodContext chainedMethod : ctx.chainedMethod()) {
+            methodCallStatementExpressionNode.addChainedMethod((ChainedMethodNode) visit(chainedMethod));
+        }
+        for(SimpleJavaParser.ExpressionContext expression : ctx.argumentList().expression()) {
+            methodCallStatementExpressionNode.addExpression((IExpressionNode) visit(expression));
+        }
+        return methodCallStatementExpressionNode;
+    }
+
+    @Override
+    public ASTNode visitTarget(SimpleJavaParser.TargetContext ctx) {
+        if(ctx.This() != null) {
+            return new TargetNode(true);
+        } else if(ctx.memberAccess() != null) {
+            return new TargetNode((MemberAccessNode) visit(ctx.memberAccess()));
+        } else if(ctx.newDeclaration() != null) {
+            return new TargetNode((NewDeclarationNode) visit(ctx.newDeclaration()));
+        } else if(ctx.Identifier() != null) {
+            return new TargetNode(ctx.Identifier().getText());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitChainedMethod(SimpleJavaParser.ChainedMethodContext ctx) {
+        ChainedMethodNode chainedMethodNode = new ChainedMethodNode(ctx.Identifier().getText());
+        for(SimpleJavaParser.ExpressionContext expression : ctx.argumentList().expression()) {
+            chainedMethodNode.addExpression((IExpressionNode) visit(expression));
+        }
+        return chainedMethodNode;
+    }
+
+    @Override
+    public ASTNode visitCrementExpression(SimpleJavaParser.CrementExpressionContext ctx) {
+        if(ctx.incrementExpression() != null) {
+            return visitIncrementExpression(ctx.incrementExpression());
+        } else if(ctx.decrementExpression() != null) {
+            return visitDecrementExpression(ctx.decrementExpression());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx) {
+        if(ctx.prefixIncrementExpression() != null) {
+            return visitPrefixIncrementExpression(ctx.prefixIncrementExpression());
+        } else if(ctx.suffixIncrementExpression() != null) {
+            return visitSuffixIncrementExpression(ctx.suffixIncrementExpression());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx) {
+        return new IncrementNode(CrementType.PREFIX, (AssignableNode) visit(ctx.assignableExpression()));
+    }
+
+    @Override
+    public ASTNode visitSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx) {
+        return new IncrementNode(CrementType.SUFFIX, (AssignableNode) visit(ctx.assignableExpression()));
+    }
+
+    @Override
+    public ASTNode visitDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx) {
+        if(ctx.prefixDecrementExpression() != null) {
+            return visitPrefixDecrementExpression(ctx.prefixDecrementExpression());
+        } else if(ctx.suffixDecrementExpression() != null) {
+            return visitSuffixDecrementExpression(ctx.suffixDecrementExpression());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx) {
+        return new DecrementNode(CrementType.PREFIX, (AssignableNode) visit(ctx.assignableExpression()));
+    }
+
+    @Override
+    public ASTNode visitSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx) {
+        return new DecrementNode(CrementType.SUFFIX, (AssignableNode) visit(ctx.assignableExpression()));
+    }
+
+    @Override
+    public ASTNode visitExpression(SimpleJavaParser.ExpressionContext ctx) {
+        if(ctx.unaryExpression() != null) {
+            return visit(ctx.unaryExpression());
+        } else if(ctx.binaryExpression() != null) {
+            return visit(ctx.binaryExpression());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx) {
+        if(ctx.This() != null) {
+            return new UnaryNode(ctx.This().getText());
+        } else if(ctx.Identifier() != null) {
+            return new UnaryNode(ctx.Identifier().getText());
+        } else if(ctx.memberAccess() != null) {
+            return new UnaryNode((MemberAccessNode) visitMemberAccess(ctx.memberAccess()));
+        } else if(ctx.value() != null) {
+            return new UnaryNode((ValueNode) visitValue(ctx.value()));
+        } else if(ctx.notExpression() != null) {
+            return new UnaryNode((NotNode) visitNotExpression(ctx.notExpression()));
+        } else if(ctx.statementExpression() != null) {
+            return new UnaryNode((IStatementNode) visitStatementExpression(ctx.statementExpression()));
+        } else if(ctx.expression() != null) {
+            return new UnaryNode((IExpressionNode) visitExpression(ctx.expression()));
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitMemberAccess(SimpleJavaParser.MemberAccessContext ctx) {
+        MemberAccessNode memberAccessNode;
+        if(ctx.This() != null) {
+            memberAccessNode = new MemberAccessNode(true);
+        } else {
+            memberAccessNode = new MemberAccessNode(false);
+        }
+        for (TerminalNode identifierNode : ctx.Identifier()) {
+            memberAccessNode.addIdentifier(identifierNode.getText());
+        }
+        return memberAccessNode;
+    }
+
+    @Override
+    public ASTNode visitValue(SimpleJavaParser.ValueContext ctx) {
+        if(ctx.IntValue() != null) {
+            return new ValueNode(EnumValueNode.INT_VALUE, ctx.IntValue().getText());
+        } else if(ctx.BooleanValue() != null) {
+            return new ValueNode(EnumValueNode.BOOLEAN_VALUE, ctx.BooleanValue().getText());
+        } else if(ctx.CharValue() != null) {
+            return new ValueNode(EnumValueNode.CHAR_VALUE, ctx.CharValue().getText());
+        } else if(ctx.NullValue() != null) {
+            return new ValueNode(EnumValueNode.NULL_VALUE, ctx.NullValue().getText());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitNotExpression(SimpleJavaParser.NotExpressionContext ctx) {
+        return new NotNode((IExpressionNode) visitExpression(ctx.expression()));
+    }
+
+
+    @Override
+    public ASTNode visitBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx) {
+        if(ctx.calculationExpression() != null) {
+            return visit(ctx.calculationExpression());
+        } else if(ctx.nonCalculationExpression() != null) {
+            return visit(ctx.nonCalculationExpression());
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx) {
+        if(ctx.calculationExpression() != null) {
+            return new CalculationNode((CalculationNode) visit(ctx.calculationExpression()), ctx.LineOperator().getText(), (DotNode) visit(ctx.dotExpression()));
+        } else if(ctx.dotExpression() != null) {
+            return new CalculationNode((DotNode) visit(ctx.dotExpression()));
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitDotExpression(SimpleJavaParser.DotExpressionContext ctx) {
+        if(ctx.dotExpression() != null) {
+            return new DotNode((DotNode) visit(ctx.dotExpression()), ctx.DotOperator().getText(), (DotSubstractionNode) visit(ctx.dotSubtractionExpression()));
+        } else if(ctx.dotSubtractionExpression() != null) {
+            return new DotNode((DotSubstractionNode) visit(ctx.dotSubtractionExpression()));
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx) {
+        if(ctx.IntValue() != null) {
+            return new DotSubstractionNode(new ValueNode(EnumValueNode.INT_VALUE, ctx.IntValue().getText()));
+        } else if(ctx.Identifier() != null) {
+            return new DotSubstractionNode(ctx.Identifier().getText());
+        } else if(ctx.memberAccess() != null) {
+            return new DotSubstractionNode((MemberAccessNode) visit(ctx.memberAccess()));
+        } else if(ctx.methodCall() != null && ctx.calculationExpression() != null) {
+            return new DotSubstractionNode((MethodCallNode) visit(ctx.methodCall()), (CalculationNode) visit(ctx.calculationExpression()));
+        }
+        return null;
+    }
+
+    @Override
+    public ASTNode visitNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx) {
+        return new NonCalculationNode((UnaryNode) visit(ctx.unaryExpression()), ctx.nonCalculationOperator().getText(), (IExpressionNode) visit(ctx.expression()));
+    }
+
+    @Override
+    public ASTNode visitAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx) {
+        if(ctx.Identifier() != null) {
+            return new AssignableNode(ctx.Identifier().getText());
+        } else if(ctx.memberAccess() != null) {
+            return new AssignableNode((MemberAccessNode) visit(ctx.memberAccess()));
+        }
+        return null;
+    }
+
+    public ITypeNode createTypeNode(String identifier){
+        return switch (identifier) {
+            case "int" -> new BaseType(TypeEnum.INT);
+            case "boolean" -> new BaseType(TypeEnum.BOOL);
+            case "char" -> new BaseType(TypeEnum.CHAR);
+            case "void" -> new BaseType(TypeEnum.VOID);
+            default -> new ReferenceType(identifier);
+        };
+    }
+
+}
+

src/main/java/parser/generated/SimpleJava.tokens

@@ -1,8 +1,98 @@
 T__0=1
 T__1=2
-T__2=3
-IDENTIFIER=4
-WS=5
-'class'=1
-'{'=2
-'}'=3
+Void=3
+Boolean=4
+Char=5
+Int=6
+AccessModifier=7
+MainMethodDeclaration=8
+DotOperator=9
+LineOperator=10
+ComparisonOperator=11
+LogicalOperator=12
+Assign=13
+Plus=14
+Minus=15
+Mult=16
+Modulo=17
+Div=18
+Greater=19
+Less=20
+GreaterEqual=21
+LessEqual=22
+Equal=23
+NotEqual=24
+Not=25
+And=26
+Or=27
+Dot=28
+OpenRoundBracket=29
+ClosedRoundBracket=30
+OpenCurlyBracket=31
+ClosedCurlyBracket=32
+Semicolon=33
+Comma=34
+Class=35
+This=36
+While=37
+Do=38
+If=39
+Else=40
+For=41
+Return=42
+New=43
+Switch=44
+Case=45
+Default=46
+Colon=47
+CharValue=48
+IntValue=49
+BooleanValue=50
+NullValue=51
+Identifier=52
+WS=53
+InlineComment=54
+MultilineComment=55
+'++'=1
+'--'=2
+'void'=3
+'boolean'=4
+'char'=5
+'int'=6
+'public static void main(String[] args)'=8
+'='=13
+'+'=14
+'-'=15
+'*'=16
+'%'=17
+'/'=18
+'>'=19
+'<'=20
+'>='=21
+'<='=22
+'=='=23
+'!='=24
+'!'=25
+'&&'=26
+'||'=27
+'.'=28
+'('=29
+')'=30
+'{'=31
+'}'=32
+';'=33
+','=34
+'class'=35
+'this'=36
+'while'=37
+'do'=38
+'if'=39
+'else'=40
+'for'=41
+'return'=42
+'new'=43
+'switch'=44
+'case'=45
+'default'=46
+':'=47
+'null'=51

src/main/java/parser/generated/SimpleJavaBaseListener.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Johannes Ehlert/Documents/Git/JavaCompiler/src/main/java/parser/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 
 import org.antlr.v4.runtime.ParserRuleContext;
@@ -36,6 +36,570 @@ public class SimpleJavaBaseListener implements SimpleJavaListener {
 	 * <p>The default implementation does nothing.</p>
 	 */
 	@Override public void exitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterMemberDeclaration(SimpleJavaParser.MemberDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitMemberDeclaration(SimpleJavaParser.MemberDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterParameterList(SimpleJavaParser.ParameterListContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitParameterList(SimpleJavaParser.ParameterListContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterParameter(SimpleJavaParser.ParameterContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitParameter(SimpleJavaParser.ParameterContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterArgumentList(SimpleJavaParser.ArgumentListContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitArgumentList(SimpleJavaParser.ArgumentListContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterStatement(SimpleJavaParser.StatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitStatement(SimpleJavaParser.StatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterBlockStatement(SimpleJavaParser.BlockStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitBlockStatement(SimpleJavaParser.BlockStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterReturnStatement(SimpleJavaParser.ReturnStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitReturnStatement(SimpleJavaParser.ReturnStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterWhileStatement(SimpleJavaParser.WhileStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitWhileStatement(SimpleJavaParser.WhileStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterForStatement(SimpleJavaParser.ForStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitForStatement(SimpleJavaParser.ForStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterIfStatement(SimpleJavaParser.IfStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitIfStatement(SimpleJavaParser.IfStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterElseStatement(SimpleJavaParser.ElseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitElseStatement(SimpleJavaParser.ElseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterCaseStatement(SimpleJavaParser.CaseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitCaseStatement(SimpleJavaParser.CaseStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterStatementExpression(SimpleJavaParser.StatementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitStatementExpression(SimpleJavaParser.StatementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterAssign(SimpleJavaParser.AssignContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitAssign(SimpleJavaParser.AssignContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterExpression(SimpleJavaParser.ExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitExpression(SimpleJavaParser.ExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterNotExpression(SimpleJavaParser.NotExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitNotExpression(SimpleJavaParser.NotExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterCrementExpression(SimpleJavaParser.CrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitCrementExpression(SimpleJavaParser.CrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterMemberAccess(SimpleJavaParser.MemberAccessContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitMemberAccess(SimpleJavaParser.MemberAccessContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterDotExpression(SimpleJavaParser.DotExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitDotExpression(SimpleJavaParser.DotExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterMethodCall(SimpleJavaParser.MethodCallContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitMethodCall(SimpleJavaParser.MethodCallContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterTarget(SimpleJavaParser.TargetContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitTarget(SimpleJavaParser.TargetContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterChainedMethod(SimpleJavaParser.ChainedMethodContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitChainedMethod(SimpleJavaParser.ChainedMethodContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterType(SimpleJavaParser.TypeContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitType(SimpleJavaParser.TypeContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterValue(SimpleJavaParser.ValueContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitValue(SimpleJavaParser.ValueContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void enterNonCalculationOperator(SimpleJavaParser.NonCalculationOperatorContext ctx) { }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation does nothing.</p>
+	 */
+	@Override public void exitNonCalculationOperator(SimpleJavaParser.NonCalculationOperatorContext ctx) { }
 
 	/**
 	 * {@inheritDoc}

src/main/java/parser/generated/SimpleJavaBaseVisitor.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Johannes Ehlert/Documents/Git/JavaCompiler/src/main/java/parser/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.tree.AbstractParseTreeVisitor;
 
@@ -26,4 +26,333 @@ public class SimpleJavaBaseVisitor<T> extends AbstractParseTreeVisitor<T> implem
 	 * {@link #visitChildren} on {@code ctx}.</p>
 	 */
 	@Override public T visitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitMemberDeclaration(SimpleJavaParser.MemberDeclarationContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitParameterList(SimpleJavaParser.ParameterListContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitParameter(SimpleJavaParser.ParameterContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitArgumentList(SimpleJavaParser.ArgumentListContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitStatement(SimpleJavaParser.StatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitBlockStatement(SimpleJavaParser.BlockStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitReturnStatement(SimpleJavaParser.ReturnStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitWhileStatement(SimpleJavaParser.WhileStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitForStatement(SimpleJavaParser.ForStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitIfStatement(SimpleJavaParser.IfStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitElseStatement(SimpleJavaParser.ElseStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitCaseStatement(SimpleJavaParser.CaseStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitStatementExpression(SimpleJavaParser.StatementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitAssign(SimpleJavaParser.AssignContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitExpression(SimpleJavaParser.ExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitNotExpression(SimpleJavaParser.NotExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitCrementExpression(SimpleJavaParser.CrementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitMemberAccess(SimpleJavaParser.MemberAccessContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitDotExpression(SimpleJavaParser.DotExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitMethodCall(SimpleJavaParser.MethodCallContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitTarget(SimpleJavaParser.TargetContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitChainedMethod(SimpleJavaParser.ChainedMethodContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitType(SimpleJavaParser.TypeContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitValue(SimpleJavaParser.ValueContext ctx) { return visitChildren(ctx); }
+	/**
+	 * {@inheritDoc}
+	 *
+	 * <p>The default implementation returns the result of calling
+	 * {@link #visitChildren} on {@code ctx}.</p>
+	 */
+	@Override public T visitNonCalculationOperator(SimpleJavaParser.NonCalculationOperatorContext ctx) { return visitChildren(ctx); }
 }

src/main/java/parser/generated/SimpleJavaLexer.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Johannes Ehlert/Documents/Git/JavaCompiler/src/main/java/parser/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.Lexer;
 import org.antlr.v4.runtime.CharStream;
@@ -17,7 +17,15 @@ public class SimpleJavaLexer extends Lexer {
 	protected static final PredictionContextCache _sharedContextCache =
 		new PredictionContextCache();
 	public static final int
-		T__0=1, T__1=2, T__2=3, IDENTIFIER=4, WS=5;
+		T__0=1, T__1=2, Void=3, Boolean=4, Char=5, Int=6, AccessModifier=7, MainMethodDeclaration=8, 
+		DotOperator=9, LineOperator=10, ComparisonOperator=11, LogicalOperator=12, 
+		Assign=13, Plus=14, Minus=15, Mult=16, Modulo=17, Div=18, Greater=19, 
+		Less=20, GreaterEqual=21, LessEqual=22, Equal=23, NotEqual=24, Not=25, 
+		And=26, Or=27, Dot=28, OpenRoundBracket=29, ClosedRoundBracket=30, OpenCurlyBracket=31, 
+		ClosedCurlyBracket=32, Semicolon=33, Comma=34, Class=35, This=36, While=37, 
+		Do=38, If=39, Else=40, For=41, Return=42, New=43, Switch=44, Case=45, 
+		Default=46, Colon=47, CharValue=48, IntValue=49, BooleanValue=50, NullValue=51, 
+		Identifier=52, WS=53, InlineComment=54, MultilineComment=55;
 	public static String[] channelNames = {
 		"DEFAULT_TOKEN_CHANNEL", "HIDDEN"
 	};
@@ -28,20 +36,43 @@ public class SimpleJavaLexer extends Lexer {
 
 	private static String[] makeRuleNames() {
 		return new String[] {
-			"T__0", "T__1", "T__2", "IDENTIFIER", "WS"
+			"T__0", "T__1", "Void", "Boolean", "Char", "Int", "AccessModifier", "MainMethodDeclaration", 
+			"DotOperator", "LineOperator", "ComparisonOperator", "LogicalOperator", 
+			"Assign", "Plus", "Minus", "Mult", "Modulo", "Div", "Greater", "Less", 
+			"GreaterEqual", "LessEqual", "Equal", "NotEqual", "Not", "And", "Or", 
+			"Dot", "OpenRoundBracket", "ClosedRoundBracket", "OpenCurlyBracket", 
+			"ClosedCurlyBracket", "Semicolon", "Comma", "Class", "This", "While", 
+			"Do", "If", "Else", "For", "Return", "New", "Switch", "Case", "Default", 
+			"Colon", "CharValue", "IntValue", "BooleanValue", "NullValue", "Alphabetic", 
+			"Numeric", "ValidIdentSymbols", "Identifier", "WS", "InlineComment", 
+			"MultilineComment"
 		};
 	}
 	public static final String[] ruleNames = makeRuleNames();
 
 	private static String[] makeLiteralNames() {
 		return new String[] {
-			null, "'class'", "'{'", "'}'"
+			null, "'++'", "'--'", "'void'", "'boolean'", "'char'", "'int'", null, 
+			"'public static void main(String[] args)'", null, null, null, null, "'='", 
+			"'+'", "'-'", "'*'", "'%'", "'/'", "'>'", "'<'", "'>='", "'<='", "'=='", 
+			"'!='", "'!'", "'&&'", "'||'", "'.'", "'('", "')'", "'{'", "'}'", "';'", 
+			"','", "'class'", "'this'", "'while'", "'do'", "'if'", "'else'", "'for'", 
+			"'return'", "'new'", "'switch'", "'case'", "'default'", "':'", null, 
+			null, null, "'null'"
 		};
 	}
 	private static final String[] _LITERAL_NAMES = makeLiteralNames();
 	private static String[] makeSymbolicNames() {
 		return new String[] {
-			null, null, null, null, "IDENTIFIER", "WS"
+			null, null, null, "Void", "Boolean", "Char", "Int", "AccessModifier", 
+			"MainMethodDeclaration", "DotOperator", "LineOperator", "ComparisonOperator", 
+			"LogicalOperator", "Assign", "Plus", "Minus", "Mult", "Modulo", "Div", 
+			"Greater", "Less", "GreaterEqual", "LessEqual", "Equal", "NotEqual", 
+			"Not", "And", "Or", "Dot", "OpenRoundBracket", "ClosedRoundBracket", 
+			"OpenCurlyBracket", "ClosedCurlyBracket", "Semicolon", "Comma", "Class", 
+			"This", "While", "Do", "If", "Else", "For", "Return", "New", "Switch", 
+			"Case", "Default", "Colon", "CharValue", "IntValue", "BooleanValue", 
+			"NullValue", "Identifier", "WS", "InlineComment", "MultilineComment"
 		};
 	}
 	private static final String[] _SYMBOLIC_NAMES = makeSymbolicNames();
@@ -103,32 +134,278 @@ public class SimpleJavaLexer extends Lexer {
 	public ATN getATN() { return _ATN; }
 
 	public static final String _serializedATN =
-		"\u0004\u0000\u0005#\u0006\uffff\uffff\u0002\u0000\u0007\u0000\u0002\u0001"+
+		"\u0004\u00007\u01bb\u0006\uffff\uffff\u0002\u0000\u0007\u0000\u0002\u0001"+
 		"\u0007\u0001\u0002\u0002\u0007\u0002\u0002\u0003\u0007\u0003\u0002\u0004"+
-		"\u0007\u0004\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000\u0001\u0000"+
-		"\u0001\u0000\u0001\u0001\u0001\u0001\u0001\u0002\u0001\u0002\u0001\u0003"+
-		"\u0001\u0003\u0005\u0003\u0018\b\u0003\n\u0003\f\u0003\u001b\t\u0003\u0001"+
-		"\u0004\u0004\u0004\u001e\b\u0004\u000b\u0004\f\u0004\u001f\u0001\u0004"+
-		"\u0001\u0004\u0000\u0000\u0005\u0001\u0001\u0003\u0002\u0005\u0003\u0007"+
-		"\u0004\t\u0005\u0001\u0000\u0003\u0002\u0000AZaz\u0004\u000009AZ__az\u0003"+
-		"\u0000\t\n\r\r  $\u0000\u0001\u0001\u0000\u0000\u0000\u0000\u0003\u0001"+
-		"\u0000\u0000\u0000\u0000\u0005\u0001\u0000\u0000\u0000\u0000\u0007\u0001"+
-		"\u0000\u0000\u0000\u0000\t\u0001\u0000\u0000\u0000\u0001\u000b\u0001\u0000"+
-		"\u0000\u0000\u0003\u0011\u0001\u0000\u0000\u0000\u0005\u0013\u0001\u0000"+
-		"\u0000\u0000\u0007\u0015\u0001\u0000\u0000\u0000\t\u001d\u0001\u0000\u0000"+
-		"\u0000\u000b\f\u0005c\u0000\u0000\f\r\u0005l\u0000\u0000\r\u000e\u0005"+
-		"a\u0000\u0000\u000e\u000f\u0005s\u0000\u0000\u000f\u0010\u0005s\u0000"+
-		"\u0000\u0010\u0002\u0001\u0000\u0000\u0000\u0011\u0012\u0005{\u0000\u0000"+
-		"\u0012\u0004\u0001\u0000\u0000\u0000\u0013\u0014\u0005}\u0000\u0000\u0014"+
-		"\u0006\u0001\u0000\u0000\u0000\u0015\u0019\u0007\u0000\u0000\u0000\u0016"+
-		"\u0018\u0007\u0001\u0000\u0000\u0017\u0016\u0001\u0000\u0000\u0000\u0018"+
-		"\u001b\u0001\u0000\u0000\u0000\u0019\u0017\u0001\u0000\u0000\u0000\u0019"+
-		"\u001a\u0001\u0000\u0000\u0000\u001a\b\u0001\u0000\u0000\u0000\u001b\u0019"+
-		"\u0001\u0000\u0000\u0000\u001c\u001e\u0007\u0002\u0000\u0000\u001d\u001c"+
-		"\u0001\u0000\u0000\u0000\u001e\u001f\u0001\u0000\u0000\u0000\u001f\u001d"+
-		"\u0001\u0000\u0000\u0000\u001f \u0001\u0000\u0000\u0000 !\u0001\u0000"+
-		"\u0000\u0000!\"\u0006\u0004\u0000\u0000\"\n\u0001\u0000\u0000\u0000\u0003"+
-		"\u0000\u0019\u001f\u0001\u0006\u0000\u0000";
+		"\u0007\u0004\u0002\u0005\u0007\u0005\u0002\u0006\u0007\u0006\u0002\u0007"+
+		"\u0007\u0007\u0002\b\u0007\b\u0002\t\u0007\t\u0002\n\u0007\n\u0002\u000b"+
+		"\u0007\u000b\u0002\f\u0007\f\u0002\r\u0007\r\u0002\u000e\u0007\u000e\u0002"+
+		"\u000f\u0007\u000f\u0002\u0010\u0007\u0010\u0002\u0011\u0007\u0011\u0002"+
+		"\u0012\u0007\u0012\u0002\u0013\u0007\u0013\u0002\u0014\u0007\u0014\u0002"+
+		"\u0015\u0007\u0015\u0002\u0016\u0007\u0016\u0002\u0017\u0007\u0017\u0002"+
+		"\u0018\u0007\u0018\u0002\u0019\u0007\u0019\u0002\u001a\u0007\u001a\u0002"+
+		"\u001b\u0007\u001b\u0002\u001c\u0007\u001c\u0002\u001d\u0007\u001d\u0002"+
+		"\u001e\u0007\u001e\u0002\u001f\u0007\u001f\u0002 \u0007 \u0002!\u0007"+
+		"!\u0002\"\u0007\"\u0002#\u0007#\u0002$\u0007$\u0002%\u0007%\u0002&\u0007"+
+		"&\u0002\'\u0007\'\u0002(\u0007(\u0002)\u0007)\u0002*\u0007*\u0002+\u0007"+
+		"+\u0002,\u0007,\u0002-\u0007-\u0002.\u0007.\u0002/\u0007/\u00020\u0007"+
+		"0\u00021\u00071\u00022\u00072\u00023\u00073\u00024\u00074\u00025\u0007"+
+		"5\u00026\u00076\u00027\u00077\u00028\u00078\u00029\u00079\u0001\u0000"+
+		"\u0001\u0000\u0001\u0000\u0001\u0001\u0001\u0001\u0001\u0001\u0001\u0002"+
+		"\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0002\u0001\u0003\u0001\u0003"+
+		"\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003\u0001\u0003"+
+		"\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0004\u0001\u0005"+
+		"\u0001\u0005\u0001\u0005\u0001\u0005\u0001\u0006\u0001\u0006\u0001\u0006"+
+		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
+		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
+		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
+		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
+		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
+		"\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006\u0001\u0006"+
+		"\u0001\u0006\u0003\u0006\u00ba\b\u0006\u0001\u0007\u0001\u0007\u0001\u0007"+
+		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
+		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
+		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
+		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
+		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
+		"\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007\u0001\u0007"+
+		"\u0001\b\u0001\b\u0001\b\u0003\b\u00e6\b\b\u0001\t\u0001\t\u0003\t\u00ea"+
+		"\b\t\u0001\n\u0001\n\u0001\n\u0001\n\u0001\n\u0001\n\u0003\n\u00f2\b\n"+
+		"\u0001\u000b\u0001\u000b\u0003\u000b\u00f6\b\u000b\u0001\f\u0001\f\u0001"+
+		"\r\u0001\r\u0001\u000e\u0001\u000e\u0001\u000f\u0001\u000f\u0001\u0010"+
+		"\u0001\u0010\u0001\u0011\u0001\u0011\u0001\u0012\u0001\u0012\u0001\u0013"+
+		"\u0001\u0013\u0001\u0014\u0001\u0014\u0001\u0014\u0001\u0015\u0001\u0015"+
+		"\u0001\u0015\u0001\u0016\u0001\u0016\u0001\u0016\u0001\u0017\u0001\u0017"+
+		"\u0001\u0017\u0001\u0018\u0001\u0018\u0001\u0019\u0001\u0019\u0001\u0019"+
+		"\u0001\u001a\u0001\u001a\u0001\u001a\u0001\u001b\u0001\u001b\u0001\u001c"+
+		"\u0001\u001c\u0001\u001d\u0001\u001d\u0001\u001e\u0001\u001e\u0001\u001f"+
+		"\u0001\u001f\u0001 \u0001 \u0001!\u0001!\u0001\"\u0001\"\u0001\"\u0001"+
+		"\"\u0001\"\u0001\"\u0001#\u0001#\u0001#\u0001#\u0001#\u0001$\u0001$\u0001"+
+		"$\u0001$\u0001$\u0001$\u0001%\u0001%\u0001%\u0001&\u0001&\u0001&\u0001"+
+		"\'\u0001\'\u0001\'\u0001\'\u0001\'\u0001(\u0001(\u0001(\u0001(\u0001)"+
+		"\u0001)\u0001)\u0001)\u0001)\u0001)\u0001)\u0001*\u0001*\u0001*\u0001"+
+		"*\u0001+\u0001+\u0001+\u0001+\u0001+\u0001+\u0001+\u0001,\u0001,\u0001"+
+		",\u0001,\u0001,\u0001-\u0001-\u0001-\u0001-\u0001-\u0001-\u0001-\u0001"+
+		"-\u0001.\u0001.\u0001/\u0001/\u0005/\u016d\b/\n/\f/\u0170\t/\u0001/\u0001"+
+		"/\u00010\u00030\u0175\b0\u00010\u00040\u0178\b0\u000b0\f0\u0179\u0001"+
+		"1\u00011\u00011\u00011\u00011\u00011\u00011\u00011\u00011\u00031\u0185"+
+		"\b1\u00012\u00012\u00012\u00012\u00012\u00013\u00013\u00014\u00014\u0001"+
+		"5\u00015\u00015\u00035\u0193\b5\u00016\u00016\u00056\u0197\b6\n6\f6\u019a"+
+		"\t6\u00017\u00047\u019d\b7\u000b7\f7\u019e\u00017\u00017\u00018\u0001"+
+		"8\u00018\u00018\u00058\u01a7\b8\n8\f8\u01aa\t8\u00018\u00018\u00019\u0001"+
+		"9\u00019\u00019\u00059\u01b2\b9\n9\f9\u01b5\t9\u00019\u00019\u00019\u0001"+
+		"9\u00019\u0001\u01b3\u0000:\u0001\u0001\u0003\u0002\u0005\u0003\u0007"+
+		"\u0004\t\u0005\u000b\u0006\r\u0007\u000f\b\u0011\t\u0013\n\u0015\u000b"+
+		"\u0017\f\u0019\r\u001b\u000e\u001d\u000f\u001f\u0010!\u0011#\u0012%\u0013"+
+		"\'\u0014)\u0015+\u0016-\u0017/\u00181\u00193\u001a5\u001b7\u001c9\u001d"+
+		";\u001e=\u001f? A!C\"E#G$I%K&M\'O(Q)S*U+W,Y-[.]/_0a1c2e3g\u0000i\u0000"+
+		"k\u0000m4o5q6s7\u0001\u0000\u0005\u0002\u0000\n\n\r\r\u0002\u0000AZaz"+
+		"\u0001\u000009\u0002\u0000$$__\u0003\u0000\t\n\r\r  \u01cd\u0000\u0001"+
+		"\u0001\u0000\u0000\u0000\u0000\u0003\u0001\u0000\u0000\u0000\u0000\u0005"+
+		"\u0001\u0000\u0000\u0000\u0000\u0007\u0001\u0000\u0000\u0000\u0000\t\u0001"+
+		"\u0000\u0000\u0000\u0000\u000b\u0001\u0000\u0000\u0000\u0000\r\u0001\u0000"+
+		"\u0000\u0000\u0000\u000f\u0001\u0000\u0000\u0000\u0000\u0011\u0001\u0000"+
+		"\u0000\u0000\u0000\u0013\u0001\u0000\u0000\u0000\u0000\u0015\u0001\u0000"+
+		"\u0000\u0000\u0000\u0017\u0001\u0000\u0000\u0000\u0000\u0019\u0001\u0000"+
+		"\u0000\u0000\u0000\u001b\u0001\u0000\u0000\u0000\u0000\u001d\u0001\u0000"+
+		"\u0000\u0000\u0000\u001f\u0001\u0000\u0000\u0000\u0000!\u0001\u0000\u0000"+
+		"\u0000\u0000#\u0001\u0000\u0000\u0000\u0000%\u0001\u0000\u0000\u0000\u0000"+
+		"\'\u0001\u0000\u0000\u0000\u0000)\u0001\u0000\u0000\u0000\u0000+\u0001"+
+		"\u0000\u0000\u0000\u0000-\u0001\u0000\u0000\u0000\u0000/\u0001\u0000\u0000"+
+		"\u0000\u00001\u0001\u0000\u0000\u0000\u00003\u0001\u0000\u0000\u0000\u0000"+
+		"5\u0001\u0000\u0000\u0000\u00007\u0001\u0000\u0000\u0000\u00009\u0001"+
+		"\u0000\u0000\u0000\u0000;\u0001\u0000\u0000\u0000\u0000=\u0001\u0000\u0000"+
+		"\u0000\u0000?\u0001\u0000\u0000\u0000\u0000A\u0001\u0000\u0000\u0000\u0000"+
+		"C\u0001\u0000\u0000\u0000\u0000E\u0001\u0000\u0000\u0000\u0000G\u0001"+
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+		"\u0001\u0000\u0000\u0000\u0199n\u0001\u0000\u0000\u0000\u019a\u0198\u0001"+
+		"\u0000\u0000\u0000\u019b\u019d\u0007\u0004\u0000\u0000\u019c\u019b\u0001"+
+		"\u0000\u0000\u0000\u019d\u019e\u0001\u0000\u0000\u0000\u019e\u019c\u0001"+
+		"\u0000\u0000\u0000\u019e\u019f\u0001\u0000\u0000\u0000\u019f\u01a0\u0001"+
+		"\u0000\u0000\u0000\u01a0\u01a1\u00067\u0000\u0000\u01a1p\u0001\u0000\u0000"+
+		"\u0000\u01a2\u01a3\u0005/\u0000\u0000\u01a3\u01a4\u0005/\u0000\u0000\u01a4"+
+		"\u01a8\u0001\u0000\u0000\u0000\u01a5\u01a7\b\u0000\u0000\u0000\u01a6\u01a5"+
+		"\u0001\u0000\u0000\u0000\u01a7\u01aa\u0001\u0000\u0000\u0000\u01a8\u01a6"+
+		"\u0001\u0000\u0000\u0000\u01a8\u01a9\u0001\u0000\u0000\u0000\u01a9\u01ab"+
+		"\u0001\u0000\u0000\u0000\u01aa\u01a8\u0001\u0000\u0000\u0000\u01ab\u01ac"+
+		"\u00068\u0000\u0000\u01acr\u0001\u0000\u0000\u0000\u01ad\u01ae\u0005/"+
+		"\u0000\u0000\u01ae\u01af\u0005*\u0000\u0000\u01af\u01b3\u0001\u0000\u0000"+
+		"\u0000\u01b0\u01b2\t\u0000\u0000\u0000\u01b1\u01b0\u0001\u0000\u0000\u0000"+
+		"\u01b2\u01b5\u0001\u0000\u0000\u0000\u01b3\u01b4\u0001\u0000\u0000\u0000"+
+		"\u01b3\u01b1\u0001\u0000\u0000\u0000\u01b4\u01b6\u0001\u0000\u0000\u0000"+
+		"\u01b5\u01b3\u0001\u0000\u0000\u0000\u01b6\u01b7\u0005*\u0000\u0000\u01b7"+
+		"\u01b8\u0005/\u0000\u0000\u01b8\u01b9\u0001\u0000\u0000\u0000\u01b9\u01ba"+
+		"\u00069\u0000\u0000\u01bat\u0001\u0000\u0000\u0000\u000f\u0000\u00b9\u00e5"+
+		"\u00e9\u00f1\u00f5\u016e\u0174\u0179\u0184\u0192\u0198\u019e\u01a8\u01b3"+
+		"\u0001\u0006\u0000\u0000";
 	public static final ATN _ATN =
 		new ATNDeserializer().deserialize(_serializedATN.toCharArray());
 	static {

src/main/java/parser/generated/SimpleJavaLexer.tokens

@@ -1,8 +1,98 @@
 T__0=1
 T__1=2
-T__2=3
-IDENTIFIER=4
-WS=5
-'class'=1
-'{'=2
-'}'=3
+Void=3
+Boolean=4
+Char=5
+Int=6
+AccessModifier=7
+MainMethodDeclaration=8
+DotOperator=9
+LineOperator=10
+ComparisonOperator=11
+LogicalOperator=12
+Assign=13
+Plus=14
+Minus=15
+Mult=16
+Modulo=17
+Div=18
+Greater=19
+Less=20
+GreaterEqual=21
+LessEqual=22
+Equal=23
+NotEqual=24
+Not=25
+And=26
+Or=27
+Dot=28
+OpenRoundBracket=29
+ClosedRoundBracket=30
+OpenCurlyBracket=31
+ClosedCurlyBracket=32
+Semicolon=33
+Comma=34
+Class=35
+This=36
+While=37
+Do=38
+If=39
+Else=40
+For=41
+Return=42
+New=43
+Switch=44
+Case=45
+Default=46
+Colon=47
+CharValue=48
+IntValue=49
+BooleanValue=50
+NullValue=51
+Identifier=52
+WS=53
+InlineComment=54
+MultilineComment=55
+'++'=1
+'--'=2
+'void'=3
+'boolean'=4
+'char'=5
+'int'=6
+'public static void main(String[] args)'=8
+'='=13
+'+'=14
+'-'=15
+'*'=16
+'%'=17
+'/'=18
+'>'=19
+'<'=20
+'>='=21
+'<='=22
+'=='=23
+'!='=24
+'!'=25
+'&&'=26
+'||'=27
+'.'=28
+'('=29
+')'=30
+'{'=31
+'}'=32
+';'=33
+','=34
+'class'=35
+'this'=36
+'while'=37
+'do'=38
+'if'=39
+'else'=40
+'for'=41
+'return'=42
+'new'=43
+'switch'=44
+'case'=45
+'default'=46
+':'=47
+'null'=51

src/main/java/parser/generated/SimpleJavaListener.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Johannes Ehlert/Documents/Git/JavaCompiler/src/main/java/parser/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.tree.ParseTreeListener;
 
@@ -27,4 +27,474 @@ public interface SimpleJavaListener extends ParseTreeListener {
 	 * @param ctx the parse tree
 	 */
 	void exitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#memberDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void enterMemberDeclaration(SimpleJavaParser.MemberDeclarationContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#memberDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void exitMemberDeclaration(SimpleJavaParser.MemberDeclarationContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#constructorDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void enterConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#constructorDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void exitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#fieldDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void enterFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#fieldDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void exitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#methodDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void enterMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#methodDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void exitMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#parameterList}.
+	 * @param ctx the parse tree
+	 */
+	void enterParameterList(SimpleJavaParser.ParameterListContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#parameterList}.
+	 * @param ctx the parse tree
+	 */
+	void exitParameterList(SimpleJavaParser.ParameterListContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#parameter}.
+	 * @param ctx the parse tree
+	 */
+	void enterParameter(SimpleJavaParser.ParameterContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#parameter}.
+	 * @param ctx the parse tree
+	 */
+	void exitParameter(SimpleJavaParser.ParameterContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#argumentList}.
+	 * @param ctx the parse tree
+	 */
+	void enterArgumentList(SimpleJavaParser.ArgumentListContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#argumentList}.
+	 * @param ctx the parse tree
+	 */
+	void exitArgumentList(SimpleJavaParser.ArgumentListContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#statement}.
+	 * @param ctx the parse tree
+	 */
+	void enterStatement(SimpleJavaParser.StatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#statement}.
+	 * @param ctx the parse tree
+	 */
+	void exitStatement(SimpleJavaParser.StatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#blockStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterBlockStatement(SimpleJavaParser.BlockStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#blockStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitBlockStatement(SimpleJavaParser.BlockStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#returnStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterReturnStatement(SimpleJavaParser.ReturnStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#returnStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitReturnStatement(SimpleJavaParser.ReturnStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#localVariableDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void enterLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#localVariableDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void exitLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#whileStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterWhileStatement(SimpleJavaParser.WhileStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#whileStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitWhileStatement(SimpleJavaParser.WhileStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#doWhileStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#doWhileStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#forStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterForStatement(SimpleJavaParser.ForStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#forStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitForStatement(SimpleJavaParser.ForStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#ifElseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#ifElseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#ifStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterIfStatement(SimpleJavaParser.IfStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#ifStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitIfStatement(SimpleJavaParser.IfStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#elseIfStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#elseIfStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#elseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterElseStatement(SimpleJavaParser.ElseStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#elseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitElseStatement(SimpleJavaParser.ElseStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#switchStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#switchStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#caseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterCaseStatement(SimpleJavaParser.CaseStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#caseStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitCaseStatement(SimpleJavaParser.CaseStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#defaultStatement}.
+	 * @param ctx the parse tree
+	 */
+	void enterDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#defaultStatement}.
+	 * @param ctx the parse tree
+	 */
+	void exitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#statementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterStatementExpression(SimpleJavaParser.StatementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#statementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitStatementExpression(SimpleJavaParser.StatementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#assign}.
+	 * @param ctx the parse tree
+	 */
+	void enterAssign(SimpleJavaParser.AssignContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#assign}.
+	 * @param ctx the parse tree
+	 */
+	void exitAssign(SimpleJavaParser.AssignContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#newDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void enterNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#newDeclaration}.
+	 * @param ctx the parse tree
+	 */
+	void exitNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#expression}.
+	 * @param ctx the parse tree
+	 */
+	void enterExpression(SimpleJavaParser.ExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#expression}.
+	 * @param ctx the parse tree
+	 */
+	void exitExpression(SimpleJavaParser.ExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#unaryExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#unaryExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#notExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterNotExpression(SimpleJavaParser.NotExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#notExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitNotExpression(SimpleJavaParser.NotExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#crementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterCrementExpression(SimpleJavaParser.CrementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#crementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitCrementExpression(SimpleJavaParser.CrementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#incrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#incrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#prefixIncrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#prefixIncrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#suffixIncrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#suffixIncrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#decrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#decrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#prefixDecrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#prefixDecrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#suffixDecrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#suffixDecrementExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#assignableExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#assignableExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#memberAccess}.
+	 * @param ctx the parse tree
+	 */
+	void enterMemberAccess(SimpleJavaParser.MemberAccessContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#memberAccess}.
+	 * @param ctx the parse tree
+	 */
+	void exitMemberAccess(SimpleJavaParser.MemberAccessContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#binaryExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#binaryExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#calculationExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#calculationExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#dotExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterDotExpression(SimpleJavaParser.DotExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#dotExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitDotExpression(SimpleJavaParser.DotExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#dotSubtractionExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#dotSubtractionExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#nonCalculationExpression}.
+	 * @param ctx the parse tree
+	 */
+	void enterNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#nonCalculationExpression}.
+	 * @param ctx the parse tree
+	 */
+	void exitNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#methodCall}.
+	 * @param ctx the parse tree
+	 */
+	void enterMethodCall(SimpleJavaParser.MethodCallContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#methodCall}.
+	 * @param ctx the parse tree
+	 */
+	void exitMethodCall(SimpleJavaParser.MethodCallContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#target}.
+	 * @param ctx the parse tree
+	 */
+	void enterTarget(SimpleJavaParser.TargetContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#target}.
+	 * @param ctx the parse tree
+	 */
+	void exitTarget(SimpleJavaParser.TargetContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#chainedMethod}.
+	 * @param ctx the parse tree
+	 */
+	void enterChainedMethod(SimpleJavaParser.ChainedMethodContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#chainedMethod}.
+	 * @param ctx the parse tree
+	 */
+	void exitChainedMethod(SimpleJavaParser.ChainedMethodContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#type}.
+	 * @param ctx the parse tree
+	 */
+	void enterType(SimpleJavaParser.TypeContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#type}.
+	 * @param ctx the parse tree
+	 */
+	void exitType(SimpleJavaParser.TypeContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#value}.
+	 * @param ctx the parse tree
+	 */
+	void enterValue(SimpleJavaParser.ValueContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#value}.
+	 * @param ctx the parse tree
+	 */
+	void exitValue(SimpleJavaParser.ValueContext ctx);
+	/**
+	 * Enter a parse tree produced by {@link SimpleJavaParser#nonCalculationOperator}.
+	 * @param ctx the parse tree
+	 */
+	void enterNonCalculationOperator(SimpleJavaParser.NonCalculationOperatorContext ctx);
+	/**
+	 * Exit a parse tree produced by {@link SimpleJavaParser#nonCalculationOperator}.
+	 * @param ctx the parse tree
+	 */
+	void exitNonCalculationOperator(SimpleJavaParser.NonCalculationOperatorContext ctx);
 }

src/main/java/parser/generated/SimpleJavaVisitor.java

@@ -1,4 +1,4 @@
-// Generated from C:/Users/Johannes Ehlert/Documents/Git/JavaCompiler/src/main/java/parser/SimpleJava.g4 by ANTLR 4.13.1
+// Generated from C:/Users/janni/Desktop/NichtHaskell2.0/src/main/java/parser/grammar/SimpleJava.g4 by ANTLR 4.13.1
 package parser.generated;
 import org.antlr.v4.runtime.tree.ParseTreeVisitor;
 
@@ -22,4 +22,286 @@ public interface SimpleJavaVisitor<T> extends ParseTreeVisitor<T> {
 	 * @return the visitor result
 	 */
 	T visitClassDeclaration(SimpleJavaParser.ClassDeclarationContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#memberDeclaration}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitMemberDeclaration(SimpleJavaParser.MemberDeclarationContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#constructorDeclaration}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitConstructorDeclaration(SimpleJavaParser.ConstructorDeclarationContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#fieldDeclaration}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitFieldDeclaration(SimpleJavaParser.FieldDeclarationContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#methodDeclaration}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitMethodDeclaration(SimpleJavaParser.MethodDeclarationContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#parameterList}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitParameterList(SimpleJavaParser.ParameterListContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#parameter}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitParameter(SimpleJavaParser.ParameterContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#argumentList}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitArgumentList(SimpleJavaParser.ArgumentListContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#statement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitStatement(SimpleJavaParser.StatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#blockStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitBlockStatement(SimpleJavaParser.BlockStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#returnStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitReturnStatement(SimpleJavaParser.ReturnStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#localVariableDeclaration}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitLocalVariableDeclaration(SimpleJavaParser.LocalVariableDeclarationContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#whileStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitWhileStatement(SimpleJavaParser.WhileStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#doWhileStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitDoWhileStatement(SimpleJavaParser.DoWhileStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#forStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitForStatement(SimpleJavaParser.ForStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#ifElseStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitIfElseStatement(SimpleJavaParser.IfElseStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#ifStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitIfStatement(SimpleJavaParser.IfStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#elseIfStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitElseIfStatement(SimpleJavaParser.ElseIfStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#elseStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitElseStatement(SimpleJavaParser.ElseStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#switchStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSwitchStatement(SimpleJavaParser.SwitchStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#caseStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitCaseStatement(SimpleJavaParser.CaseStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#defaultStatement}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitDefaultStatement(SimpleJavaParser.DefaultStatementContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#statementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitStatementExpression(SimpleJavaParser.StatementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#assign}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitAssign(SimpleJavaParser.AssignContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#newDeclaration}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitNewDeclaration(SimpleJavaParser.NewDeclarationContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#expression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitExpression(SimpleJavaParser.ExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#unaryExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitUnaryExpression(SimpleJavaParser.UnaryExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#notExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitNotExpression(SimpleJavaParser.NotExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#crementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitCrementExpression(SimpleJavaParser.CrementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#incrementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitIncrementExpression(SimpleJavaParser.IncrementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#prefixIncrementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitPrefixIncrementExpression(SimpleJavaParser.PrefixIncrementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#suffixIncrementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSuffixIncrementExpression(SimpleJavaParser.SuffixIncrementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#decrementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitDecrementExpression(SimpleJavaParser.DecrementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#prefixDecrementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitPrefixDecrementExpression(SimpleJavaParser.PrefixDecrementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#suffixDecrementExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitSuffixDecrementExpression(SimpleJavaParser.SuffixDecrementExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#assignableExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitAssignableExpression(SimpleJavaParser.AssignableExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#memberAccess}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitMemberAccess(SimpleJavaParser.MemberAccessContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#binaryExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitBinaryExpression(SimpleJavaParser.BinaryExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#calculationExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitCalculationExpression(SimpleJavaParser.CalculationExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#dotExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitDotExpression(SimpleJavaParser.DotExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#dotSubtractionExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitDotSubtractionExpression(SimpleJavaParser.DotSubtractionExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#nonCalculationExpression}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitNonCalculationExpression(SimpleJavaParser.NonCalculationExpressionContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#methodCall}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitMethodCall(SimpleJavaParser.MethodCallContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#target}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitTarget(SimpleJavaParser.TargetContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#chainedMethod}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitChainedMethod(SimpleJavaParser.ChainedMethodContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#type}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitType(SimpleJavaParser.TypeContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#value}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitValue(SimpleJavaParser.ValueContext ctx);
+	/**
+	 * Visit a parse tree produced by {@link SimpleJavaParser#nonCalculationOperator}.
+	 * @param ctx the parse tree
+	 * @return the visitor result
+	 */
+	T visitNonCalculationOperator(SimpleJavaParser.NonCalculationOperatorContext ctx);
 }

src/main/java/parser/grammar/SimpleJava.g4

@@ -0,0 +1,181 @@
+grammar SimpleJava;
+
+// Programm-Konstrukte
+program: classDeclaration+;
+
+classDeclaration: AccessModifier? 'class' Identifier OpenCurlyBracket memberDeclaration* ClosedCurlyBracket;
+memberDeclaration: constructorDeclaration | fieldDeclaration | methodDeclaration;
+
+constructorDeclaration: AccessModifier? Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
+fieldDeclaration: AccessModifier? type Identifier (Assign expression)? Semicolon;
+methodDeclaration: MainMethodDeclaration blockStatement | AccessModifier? (type | Void) Identifier OpenRoundBracket parameterList? ClosedRoundBracket blockStatement;
+
+parameterList: parameter (Comma parameter)*;
+parameter: type Identifier;
+argumentList: (expression (Comma expression)*)?;
+
+// Anweisungen
+statement: returnStatement Semicolon
+         | localVariableDeclaration Semicolon
+         | blockStatement
+         | whileStatement
+         | doWhileStatement
+         | forStatement
+         | ifElseStatement
+         | switchStatement
+         | statementExpression Semicolon;
+
+blockStatement: OpenCurlyBracket statement* ClosedCurlyBracket;
+
+returnStatement: Return (expression)?;
+localVariableDeclaration: type Identifier (Assign expression)?;
+
+whileStatement: While OpenRoundBracket expression ClosedRoundBracket blockStatement;
+doWhileStatement: Do blockStatement While OpenRoundBracket expression ClosedRoundBracket Semicolon;
+forStatement: For OpenRoundBracket (statementExpression | localVariableDeclaration) Semicolon (expression)? Semicolon (statementExpression)? ClosedRoundBracket blockStatement;
+
+ifElseStatement: ifStatement elseIfStatement* elseStatement?;
+ifStatement: If OpenRoundBracket expression ClosedRoundBracket blockStatement;
+elseIfStatement: Else If OpenRoundBracket expression ClosedRoundBracket blockStatement;
+elseStatement: Else blockStatement;
+
+switchStatement: Switch OpenRoundBracket expression ClosedRoundBracket OpenCurlyBracket caseStatement+ defaultStatement? ClosedCurlyBracket;
+caseStatement: Case value Colon statement*;
+defaultStatement: Default Colon statement*;
+
+statementExpression: assign | newDeclaration | methodCall | crementExpression;
+assign: assignableExpression Assign expression;
+newDeclaration: New Identifier OpenRoundBracket argumentList ClosedRoundBracket;
+
+// Ausdrücke
+expression: unaryExpression | binaryExpression;
+
+unaryExpression: This
+               | Identifier
+               | memberAccess
+               | value
+               | notExpression
+               | statementExpression
+               | OpenRoundBracket expression ClosedRoundBracket;
+
+notExpression: Not expression;
+
+crementExpression: incrementExpression | decrementExpression;
+
+incrementExpression: prefixIncrementExpression | suffixIncrementExpression;
+prefixIncrementExpression: '++' assignableExpression;
+suffixIncrementExpression: assignableExpression '++';
+
+decrementExpression: prefixDecrementExpression | suffixDecrementExpression;
+prefixDecrementExpression: '--' assignableExpression;
+suffixDecrementExpression: assignableExpression '--';
+
+assignableExpression: Identifier | memberAccess;
+
+memberAccess: This Dot Identifier
+            | (This Dot)? (Identifier Dot)+ Identifier;
+
+binaryExpression: calculationExpression | nonCalculationExpression;
+
+calculationExpression: calculationExpression LineOperator dotExpression
+                     | dotExpression;
+
+dotExpression: dotExpression DotOperator dotSubtractionExpression
+              | dotSubtractionExpression;
+
+dotSubtractionExpression: IntValue
+                        | Identifier
+                        | memberAccess
+                        | methodCall OpenRoundBracket calculationExpression ClosedRoundBracket;
+
+nonCalculationExpression: unaryExpression nonCalculationOperator expression;
+
+// Methodenaufrufe
+methodCall: target? chainedMethod* Identifier OpenRoundBracket argumentList ClosedRoundBracket;
+target: (This | memberAccess | newDeclaration | Identifier) Dot;
+chainedMethod: Identifier OpenRoundBracket argumentList ClosedRoundBracket Dot;
+
+// Typen
+type: Int
+    | Boolean
+    | Char
+    | Identifier;
+
+Void: 'void';
+Boolean: 'boolean';
+Char: 'char';
+Int: 'int';
+
+value: IntValue
+     | BooleanValue
+     | CharValue
+     | NullValue;
+
+// Zugriffsmodifikatoren
+AccessModifier: 'public' | 'private' | 'public static' | 'private static';
+MainMethodDeclaration: 'public static void main(String[] args)';
+
+// Operatoren
+nonCalculationOperator: LogicalOperator | ComparisonOperator;
+
+DotOperator: Mult | Div | Modulo;
+LineOperator: Plus | Minus;
+ComparisonOperator: Greater | Less | GreaterEqual | LessEqual | Equal | NotEqual;
+LogicalOperator: And | Or;
+
+Assign: '=';
+Plus: '+';
+Minus: '-';
+Mult: '*';
+Modulo: '%';
+Div: '/';
+Greater: '>';
+Less: '<';
+GreaterEqual: '>=';
+LessEqual: '<=';
+Equal: '==';
+NotEqual: '!=';
+Not: '!';
+And: '&&';
+Or: '||';
+
+// Symbole
+Dot: '.';
+OpenRoundBracket: '(';
+ClosedRoundBracket: ')';
+OpenCurlyBracket: '{';
+ClosedCurlyBracket: '}';
+Semicolon: ';';
+Comma: ',';
+
+// Schlüsselwörter
+Class: 'class';
+This: 'this';
+While: 'while';
+Do: 'do';
+If: 'if';
+Else: 'else';
+For: 'for';
+Return: 'return';
+New: 'new';
+Switch: 'switch';
+Case: 'case';
+Default: 'default';
+Colon: ':';
+
+// Werte
+CharValue: '\'' ~[\r\n]* '\'';
+IntValue: Minus? Numeric+;
+BooleanValue: 'true' | 'false';
+NullValue: 'null';
+
+// Bezeichner
+fragment Alphabetic: [a-zA-Z];
+fragment Numeric: [0-9];
+fragment ValidIdentSymbols: Alphabetic | Numeric | '$' | '_';
+Identifier: Alphabetic ValidIdentSymbols*;
+
+// Whitespaces und Kommentare ignorieren
+WS: [ \t\r\n]+ -> skip;
+InlineComment: '//' ~[\r\n]* -> skip;
+MultilineComment: '/*' .*? '*/' -> skip;

src/main/java/semantic/Scope.java

@@ -0,0 +1,48 @@
+package semantic;
+
+import ast.type.type.*;
+import semantic.exceptions.AlreadyDeclaredException;
+
+import java.util.HashMap;
+import java.util.Stack;
+
+public class Scope {
+
+    private Stack<HashMap<String, ITypeNode>> localVars;
+
+    public Scope() {
+        localVars = new Stack<HashMap<String, ITypeNode>>();
+    }
+
+    public void addLocalVar(String name, ITypeNode type) {
+        if (this.contains(name)) {
+            throw new AlreadyDeclaredException("Variable " + name + " already exists in this scope");
+        }
+        localVars.peek().put(name, type);
+    }
+
+    public ITypeNode getLocalVar(String name) {
+        for (HashMap<String, ITypeNode> map : localVars) {
+            return map.get(name);
+        }
+        return null;
+    }
+
+    public boolean contains(String name) {
+        for (HashMap<String, ITypeNode> map : localVars) {
+            if (map.containsKey(name)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public void pushScope() {
+        localVars.push(new HashMap<String, ITypeNode>());
+    }
+
+    public void popScope() {
+        localVars.pop();
+    }
+
+}

src/main/java/semantic/SemanticAnalyzer.java

@@ -0,0 +1,623 @@
+package semantic;
+
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Objects;
+
+import ast.*;
+import ast.expressions.IExpressionNode;
+import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.members.ConstructorNode;
+import ast.members.FieldNode;
+import ast.members.MemberNode;
+import ast.members.MethodNode;
+import ast.parameters.ParameterNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.NewDeclarationNode;
+import ast.statementexpressions.crementexpressions.DecrementNode;
+import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
+import ast.statements.*;
+import ast.type.AccessModifierNode;
+import ast.type.EnumAccessModifierNode;
+import ast.type.ValueNode;
+import ast.type.type.*;
+import com.sun.jdi.IntegerType;
+import semantic.context.Context;
+import semantic.exceptions.*;
+import typechecker.TypeCheckResult;
+
+public class SemanticAnalyzer implements SemanticVisitor {
+
+    private static HashMap<String, ITypeNode> currentFields = new HashMap<>();
+
+    public static ArrayList<Exception> errors = new ArrayList<>();
+
+    private static Context context;
+    private static Scope currentScope;
+    private static ClassNode currentClass;
+    private static ITypeNode currentNullType;
+    private ITypeNode currentMethodReturnType;
+
+    public static ASTNode generateTast(ASTNode node) {
+        SemanticAnalyzer semanticCheck = new SemanticAnalyzer();
+        ProgramNode programNode = (ProgramNode) node;
+        var result = programNode.accept(semanticCheck);
+        if (result.isValid()) {
+            return node;
+        } else {
+            for (Exception e : errors) {
+                e.printStackTrace(System.out);
+            }
+        }
+        return null;
+    }
+
+    public static void clearAnalyzer() {
+        currentFields.clear();
+        errors.clear();
+        currentScope = null;
+        currentClass = null;
+    }
+
+    @Override
+    public TypeCheckResult analyze(ProgramNode node) {
+
+        var valid = true;
+
+        currentScope = new Scope();
+        context = new Context(node);
+
+        List<ClassNode> classes = node.classes;
+        for (ClassNode classNode : classes) {
+            var result = classNode.accept(this);
+            valid = valid && result.isValid();
+        }
+        return new TypeCheckResult(valid, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(ClassNode classNode) {
+        var valid = true;
+
+        currentClass = classNode;
+        currentFields.clear();
+        List<MemberNode> members = classNode.members;
+        for (MemberNode memberNode : members) {
+            if (memberNode instanceof FieldNode fieldNode) {
+                //LocalFields
+                var result = fieldNode.accept(this);
+                valid = valid && result.isValid();
+            } else if (memberNode instanceof MethodNode methodNode) {
+                //Methods
+                for (MethodNode methode : currentClass.getMethods()) {
+                    if (methode.equals(methodNode))
+                        break;
+
+                }
+                var result = methodNode.accept(this);
+                valid = valid && result.isValid();
+            }
+        }
+
+        return new TypeCheckResult(valid, null);
+
+    }
+
+    @Override
+    public TypeCheckResult analyze(MethodNode methodNode) {
+        if (methodNode instanceof ConstructorNode) {
+            return new TypeCheckResult(true, new BaseType(TypeEnum.VOID));
+        } else {
+
+            var valid = true;
+
+            for (var otherMethod : currentClass.getMethods()) {
+                if (Objects.equals(otherMethod, methodNode))
+                    break;
+                if (otherMethod.isSame(methodNode)) {
+                    errors.add(new AlreadyDeclaredException(
+                            "Method " + methodNode.getIdentifier() + " is already defined in class "
+                                    + currentClass.identifier));
+                    valid = false;
+                }
+            }
+
+            currentScope.pushScope();
+            for (var parameter : methodNode.getParameters()) {
+                var result = parameter.accept(this);
+                valid = valid && result.isValid();
+                try {
+                    currentScope.addLocalVar(parameter.identifier, parameter.type);
+                } catch (AlreadyDeclaredException e) {
+                    errors.add(new AlreadyDeclaredException(parameter.identifier));
+                }
+
+            }
+
+            currentMethodReturnType = methodNode.getType();
+            currentNullType = currentMethodReturnType;
+
+            var result = methodNode.block.accept(this);
+            valid = valid && result.isValid();
+            currentScope.popScope();
+            ITypeNode resultType = result.getType();
+
+            if (resultType == null) {
+                resultType = new BaseType(TypeEnum.VOID);
+            }
+            if (methodNode.getType() == null) {
+                methodNode.setType(new BaseType(TypeEnum.VOID));
+            }
+
+            return new TypeCheckResult(valid, resultType);
+
+        }
+    }
+
+    @Override
+    public TypeCheckResult analyze(FieldNode toCheck) {
+        if (currentFields.get(toCheck.identifier) != null) {
+            errors.add(new AlreadyDeclaredException("Already declared " + toCheck.identifier));
+            return new TypeCheckResult(false, null);
+        } else {
+            currentFields.put(toCheck.identifier, toCheck.type);
+        }
+        return new TypeCheckResult(true, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(IfNode toCheck) {
+        toCheck.block.accept(this);
+
+        var resultExpression = toCheck.expression.accept(this);
+        if (resultExpression.isValid()) {
+            if (!resultExpression.getType().equals(new BaseType(TypeEnum.BOOL))) {
+                errors.add(new TypeMismatchException("Expression must be Boolean"));
+                return new TypeCheckResult(false, new BaseType(TypeEnum.VOID));
+            }
+        }
+
+        return new TypeCheckResult(true, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(ReturnNode toCheck) {
+        if (toCheck.expression != null) {
+            var result = toCheck.expression.accept(this);
+            if (result.isValid()) {
+                if (!result.getType().equals(currentMethodReturnType)) {
+                    errors.add(new TypeMismatchException("Mismatched return Type from method"));
+                }
+            }
+            return new TypeCheckResult(true, result.getType());
+        } else if (toCheck.voidReturn) {
+            return new TypeCheckResult(true, new BaseType(TypeEnum.VOID));
+        }
+        return new TypeCheckResult(true, null);
+
+    }
+
+    @Override
+    public TypeCheckResult analyze(WhileNode toCheck) {
+        var expResult = toCheck.expression.accept(this);
+        var blockRes = toCheck.block.accept(this);
+        return new TypeCheckResult(expResult.isValid() && blockRes.isValid(), blockRes.getType());
+    }
+
+    @Override
+    public TypeCheckResult analyze(ParameterNode toCheck) {
+        return new TypeCheckResult(true, toCheck.type);
+    }
+
+    @Override
+    public TypeCheckResult analyze(BlockNode blockNode) {
+        ITypeNode blockReturnType = null;
+        if (blockNode.statements.isEmpty()) {
+            return new TypeCheckResult(true, null);
+        }
+        for (IStatementNode statementNode : blockNode.statements) {
+            var result = statementNode.accept(this);
+            if(!(statementNode instanceof IncrementNode) && !(statementNode instanceof DecrementNode)){
+                if (result.getType() != null) {
+                    if (blockReturnType == null) {
+                        blockReturnType = result.getType();
+                    } else {
+                        if (!blockReturnType.equals(result.getType())) {
+                            errors.add(new MultipleReturnTypes("There are multiple Return types"));
+                        }
+                    }
+                }
+            }
+        }
+        return new TypeCheckResult(true, blockReturnType);
+    }
+
+    @Override
+    public TypeCheckResult analyze(AssignableNode toCheck) {
+
+        if (toCheck.memberAccess != null) {
+            var result = toCheck.memberAccess.accept(this);
+            toCheck.setTypeNode(result.getType());
+            return result;
+        } else {
+            if (currentFields.get(toCheck.identifier) != null) {
+                var type = currentFields.get(toCheck.identifier);
+                toCheck.setTypeNode(type);
+                return new TypeCheckResult(true, type);
+            } else if (currentScope.getLocalVar(toCheck.identifier) != null) {
+                var type = currentScope.getLocalVar(toCheck.identifier);
+                return new TypeCheckResult(true, type);
+            }
+        }
+
+        return new TypeCheckResult(true, null);
+
+    }
+
+    @Override
+    public TypeCheckResult analyze(ElseNode toCheck) {
+        return toCheck.block.accept(this);
+    }
+
+    @Override
+    public TypeCheckResult analyze(AssignNode toCheck) {
+        AssignableNode assignable = toCheck.assignable;
+        var oldNullType = currentNullType;
+        currentNullType = currentFields.get(toCheck.assignable.identifier);
+        IExpressionNode rExpression = toCheck.expression;
+        currentNullType = oldNullType;
+        var valid = true;
+
+        // This check currently handles things like :
+        /**
+         * private int i;
+         * void foo(int i){
+         * i = i;
+         * }
+         */
+        if (assignable.equals(rExpression)) {
+            errors.add(new TypeMismatchException("Cannot assign to self"));
+            valid = false;
+        }
+
+        var lResult = assignable.accept(this);
+        currentNullType = lResult.getType();
+        var rResult = rExpression.accept(this);
+
+        if (!Objects.equals(lResult.getType(), rResult.getType())) {
+            errors.add(new TypeMismatchException(
+                    "Mismatch types in Assign-Statement: cannot convert from \"" + lResult.getType() + "\" to \""
+                            + rResult.getType() + "\""));
+            valid = false;
+        }
+        valid = valid && lResult.isValid() && rResult.isValid();
+        currentNullType = null;
+        return new TypeCheckResult(valid, null); // return type is null to get the return type sufficently
+    }
+
+    @Override
+    public TypeCheckResult analyze(DecrementNode decrementNode) {
+        return decrementNode.assignableExpression.accept(this);
+    }
+
+    @Override
+    public TypeCheckResult analyze(IfElseNode toCheck) {
+        var resultIf = toCheck.ifStatement.accept(this);
+        var resultElse = toCheck.elseStatement.accept(this);
+
+        return new TypeCheckResult(resultIf.isValid() && resultElse.isValid(), new BaseType(TypeEnum.VOID));
+    }
+
+    @Override
+    public TypeCheckResult analyze(MethodCallNode toCheck) {
+
+        if (toCheck.target.identifier != null) {
+            var targetType = currentScope.getLocalVar(toCheck.target.identifier);
+            if (targetType == null) {
+                targetType = currentFields.get(toCheck.target.identifier);
+            }
+            if (targetType instanceof ReferenceType reference) {
+                var type = getTypeFromMethod(toCheck, reference);
+                if (type != null) {
+                    return new TypeCheckResult(true, type);
+                } else {
+                    return new TypeCheckResult(false, null);
+                }
+
+            }
+        } else {
+            if (toCheck.target.thisTar) {
+                var type = getTypeFromMethod(toCheck, new ReferenceType(currentClass.identifier));
+                if (type != null) {
+                    return new TypeCheckResult(true, type);
+                }
+            } else {
+                var result = toCheck.target.accept(this);
+                if (result.getType() instanceof ReferenceType reference) {
+                    return new TypeCheckResult(true, getTypeFromMethod(toCheck, reference));
+                }
+            }
+        }
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(LocalVariableDeclarationNode localVarDecl) {
+        var valid = true;
+
+        if (localVarDecl.expression != null) {
+            TypeCheckResult result = localVarDecl.expression.accept(this);
+
+            var resultType = localVarDecl.expression.getType();
+            if (result.getType() != null) {
+                resultType = result.getType();
+            }
+            valid = result.isValid() && valid;
+
+            if (!Objects.equals(resultType, localVarDecl.type)) {
+                errors.add(new TypeMismatchException(
+                        "Type mismatch: cannot convert from " + resultType + " to " + localVarDecl.type));
+                valid = false;
+            }
+
+        }
+
+        try {
+            currentScope.addLocalVar(localVarDecl.identifier, localVarDecl.type);
+        } catch (AlreadyDefinedException e) {
+            errors.add(new AlreadyDefinedException(e.getMessage()));
+            valid = false;
+        }
+        return new TypeCheckResult(valid, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(NewDeclarationNode toCheck) {
+
+        if (context.containsClass(toCheck.identifier)) {
+            return new TypeCheckResult(true, new ReferenceType(toCheck.identifier));
+        }
+
+        return null;
+    }
+
+    @Override
+    public TypeCheckResult analyze(IncrementNode toCheck) {
+        return toCheck.assignableExpression.accept(this);
+    }
+
+    @Override
+    public TypeCheckResult analyze(BinaryNode toCheck) {
+        return null;
+    }
+
+    @Override
+    public TypeCheckResult analyze(CalculationNode calcNode) {
+        if (calcNode.calculationExpression != null) {
+            var calcRes = calcNode.calculationExpression.accept(this);
+            if (calcNode.dotExpression != null) {
+                var dotRes = calcNode.dotExpression.accept(this);
+
+                switch (calcNode.operator) {
+                    case PLUS, MINUS:
+                        if (calcRes.getType() instanceof BaseType calcType && dotRes.getType() instanceof BaseType dotType &&
+                                calcType.getTypeEnum().equals(TypeEnum.INT) && dotType.getTypeEnum().equals(TypeEnum.INT)) {
+                            return new TypeCheckResult(true, new BaseType(TypeEnum.INT));
+                        }
+                        break;
+                    default:
+                }
+
+            } else {
+                return new TypeCheckResult(calcRes.isValid(), calcRes.getType());
+            }
+        } else if (calcNode.dotExpression != null) {
+            var dotRes = calcNode.dotExpression.accept(this);
+            return new TypeCheckResult(dotRes.isValid(), dotRes.getType());
+        }
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(DotNode toCheck) {
+        if (toCheck.dotSubstractionExpression != null) {
+            return toCheck.dotSubstractionExpression.accept(this);
+        }
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(DotSubstractionNode toCheck) {
+        if (toCheck.value != null) {
+            return toCheck.value.accept(this);
+        } else if (toCheck.memberAccess != null) {
+            return toCheck.memberAccess.accept(this);
+        } else if (toCheck.methodCall != null) {
+            return toCheck.methodCall.accept(this);
+        } else if (toCheck.identifier != null) {
+            if (currentScope.contains(toCheck.identifier)) {
+                return new TypeCheckResult(true, currentScope.getLocalVar(toCheck.identifier));
+            } else if (currentFields.get(toCheck.identifier) != null) {
+                return new TypeCheckResult(true, currentFields.get(toCheck.identifier));
+            }
+        } else if (toCheck.calculationExpression != null) {
+            return toCheck.calculationExpression.accept(this);
+        }
+        return null;
+    }
+
+    @Override
+    public TypeCheckResult analyze(NonCalculationNode nonCalculationNode) {
+        var expResult = nonCalculationNode.expression.accept(this);
+        var unaryResult = nonCalculationNode.unaryExpression.accept(this);
+
+        switch (nonCalculationNode.operator) {
+            case LESS, LESS_EQUAL, GREATER, GREATER_EQUAL:
+                if (expResult.getType() instanceof BaseType expResultType && expResultType.getTypeEnum().equals(TypeEnum.INT) &&
+                        unaryResult.getType() instanceof BaseType unaryResultType && unaryResultType.getTypeEnum().equals(TypeEnum.INT)) {
+                    return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+                } else {
+                    errors.add(new TypeMismatchException("Both types must be Integer"));
+                }
+                break;
+            case OR, AND:
+                if (expResult.getType() instanceof BaseType expResultType && expResultType.getTypeEnum().equals(TypeEnum.INT) &&
+                        unaryResult.getType() instanceof BaseType unaryResultType && unaryResultType.getTypeEnum().equals(TypeEnum.INT)) {
+                    return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+                } else {
+                    errors.add(new TypeMismatchException("Both types must be Boolean"));
+                }
+                break;
+            case EQUAL, NOT_EQUAL:
+                if (expResult.getType() instanceof BaseType expResultType && unaryResult.getType() instanceof BaseType unaryResultType
+                        && Objects.equals(expResultType, unaryResultType)) {
+                    return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+                } else {
+                    errors.add(new TypeMismatchException("Both types must be the same"));
+                }
+
+        }
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(UnaryNode unary) {
+        var valid = true;
+
+        if (unary.identifier != null) {
+            if (currentScope.contains(unary.identifier)) {
+                return new TypeCheckResult(valid, currentScope.getLocalVar(unary.identifier));
+            } else if (currentFields.get(unary.identifier) != null) {
+                return new TypeCheckResult(valid, currentFields.get(unary.identifier));
+            } else if (unary.statement != null) {
+                var result = unary.statement.accept(this);
+                unary.setType(result.getType());
+                return result;
+            } else {
+                errors.add(new NotDeclaredException("Var is not Declared"));
+            }
+        } else if (unary.statement != null) {
+            var result = unary.statement.accept(this);
+            return new TypeCheckResult(result.isValid(), result.getType());
+        } else if (unary.value != null) {
+            var result = unary.value.accept(this);
+            return new TypeCheckResult(result.isValid(), result.getType());
+        } else if (unary.memberAccess != null) {
+            var result = unary.memberAccess.accept(this);
+            return new TypeCheckResult(result.isValid(), result.getType());
+        } else if (unary.expression != null) {
+            var result = unary.expression.accept(this);
+            return new TypeCheckResult(result.isValid(), result.getType());
+        }
+
+        return new TypeCheckResult(false, null);
+    }
+
+    @Override
+    public TypeCheckResult analyze(MemberAccessNode memberAccessNode) {
+
+        ITypeNode currentType = null;
+
+        for (String s : memberAccessNode.identifiers) {
+            if (currentType == null) {
+                if (currentScope.getLocalVar(s) != null) {
+                    currentType = currentScope.getLocalVar(s);
+
+                } else if (currentFields.get(s) != null) {
+                    currentType = currentFields.get(s);
+                } else {
+                    errors.add(new NotDeclaredException(s + "Not Declared"));
+                    return new TypeCheckResult(false, null);
+                }
+
+            } else {
+                if (currentType instanceof ReferenceType reference) {
+                    var currentTypeClass = context.getClass(reference.getIdentifier());
+
+                    var currentField = currentTypeClass.getField(s);
+                    if (currentField.getAccessModifier().accessType == EnumAccessModifierNode.PUBLIC) {
+                        currentType = currentField.getType();
+                    } else {
+                        errors.add(new NotVisibleException("This field is not visible"));
+                        return new TypeCheckResult(false, null);
+                    }
+                }
+            }
+
+        }
+
+        return new TypeCheckResult(true, currentType);
+    }
+
+    @Override
+    public TypeCheckResult analyze(TargetNode targetNode) {
+
+        if (targetNode.memberAccess != null) {
+            return targetNode.memberAccess.accept(this);
+        }
+        return null;
+    }
+
+    @Override
+    public TypeCheckResult analyze(ValueNode valueNode) {
+
+        switch (valueNode.valueType) {
+            case INT_VALUE -> {
+                return new TypeCheckResult(true, new BaseType(TypeEnum.INT));
+            }
+            case CHAR_VALUE -> {
+                return new TypeCheckResult(true, new BaseType(TypeEnum.CHAR));
+            }
+            case BOOLEAN_VALUE -> {
+                return new TypeCheckResult(true, new BaseType(TypeEnum.BOOL));
+            }
+            default -> {
+                return new TypeCheckResult(false, null);
+            }
+        }
+    }
+
+    private ITypeNode getTypeFromMethod(MethodCallNode toCheck, ReferenceType reference) {
+        var classContext = context.getClass(reference.getIdentifier());
+
+        if (classContext == null) {
+            errors.add(new NotDeclaredException(toCheck.target.identifier + "is not Defined"));
+        } else {
+            var methods = classContext.getMethods();
+            for (var method : methods) {
+                if (toCheck.identifier.equals(method.getIdentifier())) {
+                    if (method.getParameters().size() == toCheck.parameters.size() && !(method instanceof ConstructorNode)) {
+                        boolean same = true;
+                        for (int i = 0; i < method.getParameters().size(); i++) {
+                            var result1 = method.getParameters().get(i).accept(this);
+                            var result2 = toCheck.parameters.get(i).accept(this);
+                            if (!Objects.equals(result1.getType(), result2.getType())) {
+                                same = false;
+                            }
+                        }
+                        if (same) {
+                            if (method.accesModifier.accessType == EnumAccessModifierNode.PUBLIC) {
+                                if (method.getType() == null) {
+                                    return new BaseType(TypeEnum.VOID);
+                                }
+                                return method.getType();
+                            } else {
+                                errors.add(new NotVisibleException("This Method is not Visible"));
+                            }
+                        }
+                    }
+                }
+            }
+            errors.add(new WrongOverloading("No Method found with this parameters"));
+        }
+        return null;
+    }
+
+}

src/main/java/semantic/SemanticVisitor.java

@@ -0,0 +1,76 @@
+package semantic;
+
+import ast.*;
+import ast.expressions.binaryexpressions.*;
+import ast.expressions.unaryexpressions.MemberAccessNode;
+import ast.expressions.unaryexpressions.UnaryNode;
+import ast.members.*;
+import ast.parameters.ParameterNode;
+import ast.statementexpressions.AssignNode;
+import ast.statementexpressions.AssignableNode;
+import ast.statementexpressions.NewDeclarationNode;
+import ast.statementexpressions.crementexpressions.DecrementNode;
+import ast.statementexpressions.crementexpressions.IncrementNode;
+import ast.statementexpressions.methodcallstatementnexpressions.MethodCallNode;
+import ast.statementexpressions.methodcallstatementnexpressions.TargetNode;
+import ast.statements.*;
+import ast.type.ValueNode;
+import typechecker.TypeCheckResult;
+
+public interface SemanticVisitor {
+
+    TypeCheckResult analyze(ProgramNode toCheck);
+
+    TypeCheckResult analyze(ClassNode toCheck);
+
+    TypeCheckResult analyze(MethodNode toCheck);
+
+    TypeCheckResult analyze(FieldNode toCheck);
+
+    TypeCheckResult analyze(IfNode toCheck);
+
+    TypeCheckResult analyze(ReturnNode toCheck);
+
+    TypeCheckResult analyze(WhileNode toCheck);
+
+    TypeCheckResult analyze(ParameterNode toCheck);
+
+    TypeCheckResult analyze(BlockNode toCheck);
+
+    TypeCheckResult analyze(AssignableNode toCheck);
+
+    TypeCheckResult analyze(ElseNode toCheck);
+
+    TypeCheckResult analyze(AssignNode toCheck);
+
+    TypeCheckResult analyze(DecrementNode toCheck);
+
+    TypeCheckResult analyze(IfElseNode toCheck);
+
+    TypeCheckResult analyze(MethodCallNode toCheck);
+
+    TypeCheckResult analyze(LocalVariableDeclarationNode toCheck);
+
+    TypeCheckResult analyze(NewDeclarationNode toCheck);
+
+    TypeCheckResult analyze(IncrementNode toCheck);
+
+    TypeCheckResult analyze(BinaryNode toCheck);
+
+    TypeCheckResult analyze(CalculationNode toCheck);
+
+    TypeCheckResult analyze(DotNode toCheck);
+
+    TypeCheckResult analyze(DotSubstractionNode toCheck);
+
+    TypeCheckResult analyze(NonCalculationNode toCheck);
+
+    TypeCheckResult analyze(UnaryNode toCheck);
+
+    TypeCheckResult analyze(MemberAccessNode toCheck);
+
+    TypeCheckResult analyze(TargetNode toCheck);
+
+    TypeCheckResult analyze(ValueNode toCheck);
+
+}

src/main/java/semantic/context/ClassContext.java

@@ -0,0 +1,37 @@
+package semantic.context;
+
+import ast.ClassNode;
+import ast.members.FieldNode;
+import ast.members.MethodNode;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+public class ClassContext {
+
+  private HashMap<String, FieldContext> fields;
+  private ArrayList<MethodNode> methods = new ArrayList<>();
+
+  public ClassContext(ClassNode classNode) {
+
+    fields = new HashMap<>();
+
+    classNode.members.forEach(member -> {
+      if(member instanceof FieldNode fieldNode) {
+        fields.put(fieldNode.identifier, new FieldContext(fieldNode));
+      }else if(member instanceof MethodNode methodNode) {
+        methods.add(methodNode);
+      }
+    });
+
+  }
+
+  public FieldContext getField(String name) {
+    return fields.get(name);
+  }
+
+  public ArrayList<MethodNode> getMethods() {
+    return methods;
+  }
+
+}

src/main/java/semantic/context/Context.java

@@ -0,0 +1,28 @@
+package semantic.context;
+
+import ast.ProgramNode;
+import java.util.HashMap;
+
+public class Context {
+
+  private HashMap<String, ClassContext> classes;
+
+  public Context(ProgramNode programNode) {
+    classes = new HashMap<>();
+
+    programNode.classes.forEach(classNode -> {
+      ClassContext classContext = new ClassContext(classNode);
+      classes.put(classNode.identifier, classContext);
+    });
+
+  }
+
+  public ClassContext getClass(String identifier) {
+    return classes.get(identifier);
+  }
+
+  public boolean containsClass(String identifier) {
+    return classes.containsKey(identifier);
+  }
+
+}

src/main/java/semantic/context/FieldContext.java

@@ -0,0 +1,25 @@
+package semantic.context;
+
+import ast.members.FieldNode;
+import ast.type.*;
+import ast.type.type.*;
+
+public class FieldContext {
+
+  private AccessModifierNode accessModifier;
+  private ITypeNode type;
+
+  public FieldContext(FieldNode field) {
+    accessModifier = field.accessTypeNode;
+    type = field.type;
+  }
+
+  public ITypeNode getType() {
+    return type;
+  }
+
+  public AccessModifierNode getAccessModifier() {
+    return accessModifier;
+  }
+
+}

src/main/java/semantic/exceptions/AlreadyDeclaredException.java

@@ -0,0 +1,9 @@
+package semantic.exceptions;
+
+public class AlreadyDeclaredException extends RuntimeException {
+
+    public AlreadyDeclaredException(String message) {
+        super(message);
+    }
+
+}

src/main/java/semantic/exceptions/AlreadyDefinedException.java

@@ -0,0 +1,9 @@
+package semantic.exceptions;
+
+public class AlreadyDefinedException extends RuntimeException {
+
+    public AlreadyDefinedException(String message) {
+        super(message);
+    }
+
+}