diff --git a/src/de/dhbwstuttgart/core/JavaTXCompiler.java b/src/de/dhbwstuttgart/core/JavaTXCompiler.java
index dc9a1127..cb39277d 100644
--- a/src/de/dhbwstuttgart/core/JavaTXCompiler.java
+++ b/src/de/dhbwstuttgart/core/JavaTXCompiler.java
@@ -27,7 +27,7 @@ import java.util.*;
 
 public class JavaTXCompiler {
 
-    private List<SourceFile> sourceFiles = new ArrayList<>();
+    protected List<SourceFile> sourceFiles = new ArrayList<>();
 
     public List<TypeInsert> getTypeInserts(File forFile){
         ResultSet result = typeInference();
diff --git a/src/de/dhbwstuttgart/parser/SyntaxTreeGenerator/StatementGenerator.java b/src/de/dhbwstuttgart/parser/SyntaxTreeGenerator/StatementGenerator.java
index b3273f9d..58eb92de 100644
--- a/src/de/dhbwstuttgart/parser/SyntaxTreeGenerator/StatementGenerator.java
+++ b/src/de/dhbwstuttgart/parser/SyntaxTreeGenerator/StatementGenerator.java
@@ -819,7 +819,7 @@ public class StatementGenerator {
                 funNParams.add(TypePlaceholder.fresh(expression.getStart())));
         RefTypeOrTPHOrWildcardOrGeneric lambdaType = TypePlaceholder.fresh(expression.getStart());
         //RefType lambdaType = new RefType(reg.getName("Fun"+params.getFormalparalist().size()),
-                //funNParams, expression.getStart());
+                //funNParams, name.getStart());
         return new LambdaExpression(lambdaType, params, block, expression.getStart());
     }
 }
diff --git a/src/de/dhbwstuttgart/parser/antlr/Java8Parser.java b/src/de/dhbwstuttgart/parser/antlr/Java8Parser.java
index 851e7ead..1af14046 100644
--- a/src/de/dhbwstuttgart/parser/antlr/Java8Parser.java
+++ b/src/de/dhbwstuttgart/parser/antlr/Java8Parser.java
@@ -180,7 +180,7 @@ public class Java8Parser extends Parser {
 		"methodInvocation_lf_primary", "methodInvocation_lfno_primary", "argumentList", 
 		"methodReference", "methodReference_lf_primary", "methodReference_lfno_primary", 
 		"arrayCreationExpression", "dimExprs", "dimExpr", "constantExpression", 
-		"expression", "lambdaExpression", "lambdaParameters", "inferredFormalParameterList", 
+		"name", "lambdaExpression", "lambdaParameters", "inferredFormalParameterList",
 		"lambdaBody", "assignmentExpression", "assignment", "leftHandSide", "assignmentOperator", 
 		"conditionalExpression", "conditionalOrExpression", "conditionalAndExpression", 
 		"inclusiveOrExpression", "exclusiveOrExpression", "andExpression", "equalityExpression", 
diff --git a/src/de/dhbwstuttgart/syntaxtree/ASTVisitor.java b/src/de/dhbwstuttgart/syntaxtree/ASTVisitor.java
index 8372dca8..d7527634 100644
--- a/src/de/dhbwstuttgart/syntaxtree/ASTVisitor.java
+++ b/src/de/dhbwstuttgart/syntaxtree/ASTVisitor.java
@@ -3,7 +3,7 @@ package de.dhbwstuttgart.syntaxtree;
 import de.dhbwstuttgart.syntaxtree.statement.*;
 import de.dhbwstuttgart.syntaxtree.statement.literal.Literal;
 import de.dhbwstuttgart.syntaxtree.statement.literal.Null;
-import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
+import de.dhbwstuttgart.syntaxtree.type.*;
 
 public interface ASTVisitor extends StatementVisitor{
 
@@ -11,8 +11,6 @@ public interface ASTVisitor extends StatementVisitor{
 
     void visit(ArgumentList argumentList);
 
-    void visit(RefTypeOrTPHOrWildcardOrGeneric refTypeOrTPHOrWildcardOrGeneric);
-
     void visit(GenericTypeVar genericTypeVar);
 
     void visit(FormalParameter formalParameter);
@@ -21,5 +19,19 @@ public interface ASTVisitor extends StatementVisitor{
 
     void visit(Field field);
 
+    void visit(Method field);
+
     void visit(ParameterList formalParameters);
+
+    void visit(ClassOrInterface classOrInterface);
+
+    void visit(RefType refType);
+
+    void visit(SuperWildcardType superWildcardType);
+
+    void visit(TypePlaceholder typePlaceholder);
+
+    void visit(ExtendsWildcardType extendsWildcardType);
+
+    void visit(GenericRefType genericRefType);
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/ClassOrInterface.java b/src/de/dhbwstuttgart/syntaxtree/ClassOrInterface.java
index 79098e4d..1604c8c5 100755
--- a/src/de/dhbwstuttgart/syntaxtree/ClassOrInterface.java
+++ b/src/de/dhbwstuttgart/syntaxtree/ClassOrInterface.java
@@ -2,6 +2,7 @@ package de.dhbwstuttgart.syntaxtree;
 
 import de.dhbwstuttgart.core.IItemWithOffset;
 import de.dhbwstuttgart.syntaxtree.type.RefType;
+import de.dhbwstuttgart.syntaxtree.visual.ASTPrinter;
 import de.dhbwstuttgart.typecheck.JavaClassName;
 import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
 import de.dhbwstuttgart.typeinference.constraints.Constraint;
@@ -15,13 +16,12 @@ import java.util.List;
 /**
  * Stellt jede Art von Klasse dar. Auch abstrakte Klassen und Interfaces
  */
-public class ClassOrInterface implements IItemWithOffset{
+public class ClassOrInterface extends SyntaxTreeNode {
   protected int modifiers;
   protected JavaClassName name;
   private List<Field> fields = new ArrayList<>();
   private List<Method> methods = new ArrayList<>();
   private GenericDeclarationList genericClassParameters;
-  private Token offset;
   private RefTypeOrTPHOrWildcardOrGeneric superClass;
   protected boolean isInterface;
   private List<? extends RefTypeOrTPHOrWildcardOrGeneric> implementedInterfaces;
@@ -29,12 +29,11 @@ public class ClassOrInterface implements IItemWithOffset{
 
   public ClassOrInterface(int modifiers, JavaClassName name, List<Field> fielddecl, List<Method> methods, List<Constructor> constructors, GenericDeclarationList genericClassParameters,
                           RefTypeOrTPHOrWildcardOrGeneric superClass, Boolean isInterface, List<? extends RefTypeOrTPHOrWildcardOrGeneric> implementedInterfaces, Token offset){
-    this.offset = offset;
+    super(offset);
       this.modifiers = modifiers;
       this.name = name;
       this.fields = fielddecl;
     this.genericClassParameters = genericClassParameters;
-    this.offset = offset;
       this.superClass = superClass;
     this.isInterface = isInterface;
       this.implementedInterfaces = implementedInterfaces;
@@ -88,7 +87,7 @@ public class ClassOrInterface implements IItemWithOffset{
   }
 
   @Override
-  public Token getOffset() {
-    return offset;
+  public void accept(ASTVisitor visitor) {
+    visitor.visit(this);
   }
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/Method.java b/src/de/dhbwstuttgart/syntaxtree/Method.java
index 350d8b15..065945ee 100755
--- a/src/de/dhbwstuttgart/syntaxtree/Method.java
+++ b/src/de/dhbwstuttgart/syntaxtree/Method.java
@@ -23,7 +23,7 @@ import de.dhbwstuttgart.syntaxtree.statement.Block;
  */
 public class Method extends Field implements IItemWithOffset, TypeScope
 {
-	private Block block;
+	public final Block block;
 	private ParameterList parameterlist = new ParameterList(new ArrayList<>(), new NullToken());
 	private ExceptionList exceptionlist;
 	private GenericDeclarationList generics;
@@ -56,4 +56,9 @@ public class Method extends Field implements IItemWithOffset, TypeScope
 	public RefTypeOrTPHOrWildcardOrGeneric getReturnType() {
 		return this.getType();
 	}
+
+	@Override
+	public void accept(ASTVisitor visitor) {
+		visitor.visit(this);
+	}
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/ParameterList.java b/src/de/dhbwstuttgart/syntaxtree/ParameterList.java
index 1d8ff055..2540f907 100755
--- a/src/de/dhbwstuttgart/syntaxtree/ParameterList.java
+++ b/src/de/dhbwstuttgart/syntaxtree/ParameterList.java
@@ -32,7 +32,7 @@ public class ParameterList extends SyntaxTreeNode implements Iterable<FormalPara
 
 	@Override
 	public Iterator<FormalParameter> iterator() {
-		return null;
+		return formalparameter.iterator();
 	}
 
     @Override
diff --git a/src/de/dhbwstuttgart/syntaxtree/StatementVisitor.java b/src/de/dhbwstuttgart/syntaxtree/StatementVisitor.java
index eddaeece..39db3ef0 100644
--- a/src/de/dhbwstuttgart/syntaxtree/StatementVisitor.java
+++ b/src/de/dhbwstuttgart/syntaxtree/StatementVisitor.java
@@ -27,8 +27,6 @@ public interface StatementVisitor {
 
     void visit(InstanceOf instanceOf);
 
-    void visit(InstVar instVar);
-
     void visit(LocalVar localVar);
 
     void visit(LocalVarDecl localVarDecl);
diff --git a/src/de/dhbwstuttgart/syntaxtree/statement/InstVar.java b/src/de/dhbwstuttgart/syntaxtree/statement/InstVar.java
deleted file mode 100755
index 021b5039..00000000
--- a/src/de/dhbwstuttgart/syntaxtree/statement/InstVar.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package de.dhbwstuttgart.syntaxtree.statement;
-
-import de.dhbwstuttgart.exceptions.NotImplementedException;
-import de.dhbwstuttgart.syntaxtree.StatementVisitor;
-import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceBlockInformation;
-import de.dhbwstuttgart.typeinference.constraints.ConstraintSet;
-import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceInformation;
-import org.antlr.v4.runtime.Token;
-
-
-public class InstVar extends Expression
-{
-    private Expression expr;
-    public InstVar(Expression instanz, String name, Token offset)
-    {
-        super(instanz.getType(),offset);
-        expr = instanz;
-    }
-
-    @Override
-    public void accept(StatementVisitor visitor) {
-        visitor.visit(this);
-    }
-}
diff --git a/src/de/dhbwstuttgart/syntaxtree/statement/LocalVar.java b/src/de/dhbwstuttgart/syntaxtree/statement/LocalVar.java
index 3c703a6f..91094a7a 100644
--- a/src/de/dhbwstuttgart/syntaxtree/statement/LocalVar.java
+++ b/src/de/dhbwstuttgart/syntaxtree/statement/LocalVar.java
@@ -1,28 +1,23 @@
 package de.dhbwstuttgart.syntaxtree.statement;
 
-import de.dhbwstuttgart.exceptions.NotImplementedException;
 import de.dhbwstuttgart.syntaxtree.StatementVisitor;
 import de.dhbwstuttgart.syntaxtree.type.RefTypeOrTPHOrWildcardOrGeneric;
-import de.dhbwstuttgart.syntaxtree.type.TypePlaceholder;
-import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceBlockInformation;
-import de.dhbwstuttgart.typeinference.constraints.ConstraintSet;
-import de.dhbwstuttgart.typeinference.assumptions.TypeInferenceInformation;
 import org.antlr.v4.runtime.Token;
 
 public class LocalVar extends Statement{
 
-    protected final String expression;
+    public final String name;
 
     public LocalVar(String n, RefTypeOrTPHOrWildcardOrGeneric type, Token offset)
     {
         super(type,offset);
-        this.expression = n;
+        this.name = n;
     }
 
     public LocalVar(Expression e1, RefTypeOrTPHOrWildcardOrGeneric type, String access)
     {
         super(type,e1.getOffset());
-        this.expression = access;
+        this.name = access;
     }
 
     @Override
diff --git a/src/de/dhbwstuttgart/syntaxtree/type/ExtendsWildcardType.java b/src/de/dhbwstuttgart/syntaxtree/type/ExtendsWildcardType.java
index ecbc79d7..0767c59d 100755
--- a/src/de/dhbwstuttgart/syntaxtree/type/ExtendsWildcardType.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/ExtendsWildcardType.java
@@ -1,6 +1,7 @@
 package de.dhbwstuttgart.syntaxtree.type;
 
 
+import de.dhbwstuttgart.syntaxtree.ASTVisitor;
 import org.antlr.v4.runtime.Token;
 
 /**
@@ -33,4 +34,8 @@ public class ExtendsWildcardType extends WildcardType{
 	}
 
 
+	@Override
+	public void accept(ASTVisitor visitor) {
+		visitor.visit(this);
+	}
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/type/GenericRefType.java b/src/de/dhbwstuttgart/syntaxtree/type/GenericRefType.java
index 8a50c726..ebb28946 100755
--- a/src/de/dhbwstuttgart/syntaxtree/type/GenericRefType.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/GenericRefType.java
@@ -1,5 +1,6 @@
 package de.dhbwstuttgart.syntaxtree.type;
 
+import de.dhbwstuttgart.syntaxtree.ASTVisitor;
 import de.dhbwstuttgart.typecheck.GenericTypeName;
 import de.dhbwstuttgart.typecheck.JavaClassName;
 import org.antlr.v4.runtime.Token;
@@ -20,5 +21,10 @@ public class GenericRefType extends RefTypeOrTPHOrWildcardOrGeneric
     public String getUniqueIdentifier(){
         return name.toString();
     }
+
+    @Override
+    public void accept(ASTVisitor visitor) {
+        visitor.visit(this);
+    }
 }
 
diff --git a/src/de/dhbwstuttgart/syntaxtree/type/RefType.java b/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
index bd370c3f..e8030403 100755
--- a/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/RefType.java
@@ -1,5 +1,6 @@
 package de.dhbwstuttgart.syntaxtree.type;
 
+import de.dhbwstuttgart.syntaxtree.ASTVisitor;
 import de.dhbwstuttgart.typecheck.JavaClassName;
 import org.antlr.v4.runtime.Token;
 
@@ -100,5 +101,9 @@ public class RefType extends RefTypeOrTPHOrWildcardOrGeneric
     }
 
 
+    @Override
+    public void accept(ASTVisitor visitor) {
+        visitor.visit(this);
+    }
 }
 
diff --git a/src/de/dhbwstuttgart/syntaxtree/type/RefTypeOrTPHOrWildcardOrGeneric.java b/src/de/dhbwstuttgart/syntaxtree/type/RefTypeOrTPHOrWildcardOrGeneric.java
index 640e80c7..20bc5b45 100644
--- a/src/de/dhbwstuttgart/syntaxtree/type/RefTypeOrTPHOrWildcardOrGeneric.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/RefTypeOrTPHOrWildcardOrGeneric.java
@@ -4,13 +4,11 @@ import de.dhbwstuttgart.syntaxtree.ASTVisitor;
 import de.dhbwstuttgart.syntaxtree.SyntaxTreeNode;
 import org.antlr.v4.runtime.Token;
 
-public class RefTypeOrTPHOrWildcardOrGeneric extends SyntaxTreeNode{
+public abstract class RefTypeOrTPHOrWildcardOrGeneric extends SyntaxTreeNode{
     public RefTypeOrTPHOrWildcardOrGeneric(Token offset) {
         super(offset);
     }
 
     @Override
-    public void accept(ASTVisitor visitor) {
-        visitor.visit(this);
-    }
+    public abstract void accept(ASTVisitor visitor);
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/type/SuperWildcardType.java b/src/de/dhbwstuttgart/syntaxtree/type/SuperWildcardType.java
index babc0a31..4cbee79e 100755
--- a/src/de/dhbwstuttgart/syntaxtree/type/SuperWildcardType.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/SuperWildcardType.java
@@ -1,6 +1,7 @@
 package de.dhbwstuttgart.syntaxtree.type;
 
 
+import de.dhbwstuttgart.syntaxtree.ASTVisitor;
 import org.antlr.v4.runtime.Token;
 
 /**
@@ -42,4 +43,9 @@ public class SuperWildcardType extends WildcardType{
 	public boolean isSuper() {
 		return true;
 	}
+
+	@Override
+	public void accept(ASTVisitor visitor) {
+		visitor.visit(this);
+	}
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/type/TypePlaceholder.java b/src/de/dhbwstuttgart/syntaxtree/type/TypePlaceholder.java
index 82f7e298..97845545 100755
--- a/src/de/dhbwstuttgart/syntaxtree/type/TypePlaceholder.java
+++ b/src/de/dhbwstuttgart/syntaxtree/type/TypePlaceholder.java
@@ -1,6 +1,7 @@
 package de.dhbwstuttgart.syntaxtree.type;
 import java.util.Hashtable;
 
+import de.dhbwstuttgart.syntaxtree.ASTVisitor;
 import de.dhbwstuttgart.syntaxtree.SyntaxTreeNode;
 import de.dhbwstuttgart.syntaxtree.factory.NameGenerator;
 import org.antlr.v4.runtime.Token;
@@ -65,4 +66,9 @@ public class TypePlaceholder extends RefTypeOrTPHOrWildcardOrGeneric
     public String getName() {
         return name;
     }
+
+    @Override
+    public void accept(ASTVisitor visitor) {
+        visitor.visit(this);
+    }
 }
diff --git a/src/de/dhbwstuttgart/syntaxtree/visual/ASTPrinter.java b/src/de/dhbwstuttgart/syntaxtree/visual/ASTPrinter.java
index bf8c1f87..22413346 100644
--- a/src/de/dhbwstuttgart/syntaxtree/visual/ASTPrinter.java
+++ b/src/de/dhbwstuttgart/syntaxtree/visual/ASTPrinter.java
@@ -1,5 +1,298 @@
 package de.dhbwstuttgart.syntaxtree.visual;
 
+import de.dhbwstuttgart.syntaxtree.*;
+import de.dhbwstuttgart.syntaxtree.statement.*;
+import de.dhbwstuttgart.syntaxtree.statement.literal.Literal;
+import de.dhbwstuttgart.syntaxtree.statement.literal.Null;
+import de.dhbwstuttgart.syntaxtree.type.*;
+
+import java.lang.reflect.Modifier;
+import java.util.Iterator;
+
 public class ASTPrinter {
 
+
+    public static String print(SourceFile toPrint){
+        StringBuilder output = new StringBuilder();
+        new OutputGenerator(output).visit(toPrint);
+        return output.toString();
+    }
+
+    private static class OutputGenerator implements ASTVisitor{
+
+        private final StringBuilder out;
+
+        OutputGenerator(StringBuilder out){
+            this.out = out;
+        }
+
+        @Override
+        public void visit(SourceFile sourceFile) {
+            for(ClassOrInterface cl : sourceFile.getClasses()){
+                cl.accept(this);
+            }
+        }
+
+        @Override
+        public void visit(ArgumentList argumentList) {
+            out.append("(");
+            Iterator<Expression> expressionIterator = argumentList.getArguments().iterator();
+            while(expressionIterator.hasNext()){
+                expressionIterator.next().accept(this);
+                if(expressionIterator.hasNext())out.append(", ");
+            }
+            out.append(")");
+        }
+
+        @Override
+        public void visit(GenericTypeVar genericTypeVar) {
+            out.append(genericTypeVar.getName());
+        }
+
+        @Override
+        public void visit(FormalParameter formalParameter) {
+            formalParameter.getType().accept(this);
+            out.append(" ");
+            out.append(formalParameter.getName());
+        }
+
+        @Override
+        public void visit(GenericDeclarationList genericTypeVars) {
+            Iterator<GenericTypeVar> genericIterator = genericTypeVars.iterator();
+            if(genericIterator.hasNext()){
+                out.append("<");
+                while(genericIterator.hasNext()){
+                    genericIterator.next().accept(this);
+                    if(genericIterator.hasNext())out.append(", ");
+                }
+                out.append(">");
+            }
+        }
+
+        @Override
+        public void visit(Field field) {
+            field.getType().accept(this);
+            out.append(" ");
+            out.append(field.getName());
+            out.append(";");
+        }
+
+        @Override
+        public void visit(Method method) {
+            method.getType().accept(this);
+            out.append(" " + method.getName());
+            method.getParameterList().accept(this);
+            method.block.accept(this);
+        }
+
+        @Override
+        public void visit(ParameterList formalParameters) {
+            out.append("(");
+            Iterator<FormalParameter> genericIterator = formalParameters.getFormalparalist().iterator();
+            if(genericIterator.hasNext()){
+                while(genericIterator.hasNext()){
+                    genericIterator.next().accept(this);
+                    if(genericIterator.hasNext())out.append(", ");
+                }
+            }
+            out.append(")");
+        }
+
+        @Override
+        public void visit(ClassOrInterface classOrInterface) {
+            if((Modifier.INTERFACE & classOrInterface.getModifiers()) == 1){
+                out.append("interface ");
+            }else{
+                out.append("class ");
+            }
+            out.append(classOrInterface.getClassName());
+            classOrInterface.getGenerics().accept(this);
+            out.append(" {\n");
+            for(Field f : classOrInterface.getFieldDecl()){
+                f.accept(this);
+                out.append("\n");
+            }
+            for(Method m : classOrInterface.getMethods()){
+                m.accept(this);
+                out.append("\n");
+            }
+        }
+
+        @Override
+        public void visit(RefType refType) {
+            out.append(refType.getName());
+            Iterator<RefTypeOrTPHOrWildcardOrGeneric> genericIterator = refType.getParaList().iterator();
+            if(genericIterator.hasNext()){
+                out.append("<");
+                while(genericIterator.hasNext()){
+                    genericIterator.next().accept(this);
+                    if(genericIterator.hasNext())out.append(", ");
+                }
+                out.append(">");
+            }
+        }
+
+        @Override
+        public void visit(SuperWildcardType superWildcardType) {
+            out.append("? super ");
+            superWildcardType.getInnerType().accept(this);
+        }
+
+        @Override
+        public void visit(TypePlaceholder typePlaceholder) {
+            out.append("TPH "+ typePlaceholder.getName());
+        }
+
+        @Override
+        public void visit(ExtendsWildcardType extendsWildcardType) {
+            out.append("? extends ");
+            extendsWildcardType.getInnerType().accept(this);
+        }
+
+        @Override
+        public void visit(GenericRefType genericRefType) {
+            out.append(genericRefType.getName());
+        }
+
+        @Override
+        public void visit(LambdaExpression lambdaExpression) {
+            lambdaExpression.params.accept(this);
+            out.append(" -> ");
+            lambdaExpression.methodBody.accept(this);
+        }
+
+        @Override
+        public void visit(Assign assign) {
+            assign.lefSide.accept(this);
+            out.append(" = ");
+            assign.rightSide.accept(this);
+        }
+
+        @Override
+        public void visit(Binary binary) {
+
+        }
+
+        @Override
+        public void visit(Block block) {
+            out.append("{\n");
+            for(Statement stmt : block.getStatements()){
+                stmt.accept(this);
+                out.append(";\n");
+            }
+            out.append("}");
+        }
+
+        @Override
+        public void visit(CastExpr castExpr) {
+
+        }
+
+        @Override
+        public void visit(EmptyStmt emptyStmt) {
+
+        }
+
+        @Override
+        public void visit(FieldVar fieldVar) {
+            fieldVar.receiver.accept(this);
+            out.append("." + fieldVar.fieldVarName);
+        }
+
+        @Override
+        public void visit(ForStmt forStmt) {
+
+        }
+
+        @Override
+        public void visit(IfStmt ifStmt) {
+
+        }
+
+        @Override
+        public void visit(InstanceOf instanceOf) {
+
+        }
+
+        @Override
+        public void visit(LocalVar localVar) {
+            out.append(localVar.name);
+        }
+
+        @Override
+        public void visit(LocalVarDecl localVarDecl) {
+            localVarDecl.getType().accept(this);
+            out.append(" " + localVarDecl.getName());
+        }
+
+        @Override
+        public void visit(MethodCall methodCall) {
+            methodCall.receiver.accept(this);
+            out.append("."+methodCall.name);
+            methodCall.getArgumentList().accept(this);
+        }
+
+        @Override
+        public void visit(NewClass methodCall) {
+            out.append("new ");
+            visit((MethodCall) methodCall);
+        }
+
+        @Override
+        public void visit(NewArray newArray) {
+
+        }
+
+        @Override
+        public void visit(Receiver receiver) {
+            receiver.expr.accept(this);
+        }
+
+        @Override
+        public void visit(Return aReturn) {
+            out.append("return ");
+            aReturn.retexpr.accept(this);
+        }
+
+        @Override
+        public void visit(ReturnVoid aReturn) {
+            out.append("return");
+        }
+
+        @Override
+        public void visit(StaticClassName staticClassName) {
+
+        }
+
+        @Override
+        public void visit(Super aSuper) {
+
+        }
+
+        @Override
+        public void visit(This aThis) {
+            out.append("this");
+        }
+
+        @Override
+        public void visit(UnaryPlus unaryPlus) {
+
+        }
+
+        @Override
+        public void visit(WhileStmt whileStmt) {
+
+        }
+
+        @Override
+        public void visit(Null aNull) {
+
+        }
+
+        @Override
+        public void visit(Literal literal) {
+
+        }
+    }
+
 }
diff --git a/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPE.java b/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPE.java
index 6d76a462..a799d8e2 100644
--- a/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPE.java
+++ b/src/de/dhbwstuttgart/typeinference/typeAlgo/TYPE.java
@@ -118,11 +118,6 @@ public class TYPE implements StatementVisitor{
         throw new NotImplementedException();
     }
 
-    @Override
-    public void visit(InstVar instVar) {
-        throw new NotImplementedException();
-    }
-
     @Override
     public void visit(LocalVar localVar) {
         // Es werden nur bei Feldvariablen Constraints generiert. Lokale Variablen sind eindeutig
diff --git a/test/typeinference/JavaTXCompilerTest.java b/test/typeinference/JavaTXCompilerTest.java
index 96dc1d40..8053d80c 100644
--- a/test/typeinference/JavaTXCompilerTest.java
+++ b/test/typeinference/JavaTXCompilerTest.java
@@ -3,6 +3,7 @@ package typeinference;
 import de.dhbwstuttgart.core.JavaTXCompiler;
 import de.dhbwstuttgart.parser.ClassNotFoundException;
 import de.dhbwstuttgart.syntaxtree.SyntaxTreeNode;
+import de.dhbwstuttgart.syntaxtree.visual.ASTPrinter;
 import de.dhbwstuttgart.typedeployment.TypeInsert;
 import de.dhbwstuttgart.typedeployment.TypeInsertPoint;
 import de.dhbwstuttgart.typeinference.ResultSet;
@@ -19,7 +20,7 @@ import java.util.List;
 
 import static org.junit.Assert.*;
 
-public class JavaTXCompilerTest {
+public class JavaTXCompilerTest extends JavaTXCompiler {
 
     private static final String rootDirectory = System.getProperty("user.dir")+"/test/javFiles/";
     private static final List<File> filesToTest = new ArrayList<>();
@@ -35,10 +36,10 @@ public class JavaTXCompilerTest {
         //filesToTest.add(new File(rootDirectory+"Generics.jav"));
         //filesToTest.add(new File(rootDirectory+"MethodsEasy.jav"));
         //filesToTest.add(new File(rootDirectory+"Matrix.jav"));
-        JavaTXCompiler compiler = new JavaTXCompiler();
         for(File f : filesToTest){
-            compiler.parse(f);
-            List<TypeInsert> result = compiler.getTypeInserts(f);
+            this.parse(f);
+            System.out.println(ASTPrinter.print(this.sourceFiles.get(sourceFiles.size()-1)));
+            List<TypeInsert> result = this.getTypeInserts(f);
             String content = readFile(f.getPath(), StandardCharsets.UTF_8);
             for(TypeInsert tip : result){
                 System.out.println(tip.insert(content));