diff --git a/src/main/java/bytecode/ClassCodeGen.java b/src/main/java/bytecode/ClassCodeGen.java
index af003bc..a59a632 100644
--- a/src/main/java/bytecode/ClassCodeGen.java
+++ b/src/main/java/bytecode/ClassCodeGen.java
@@ -13,7 +13,8 @@ import java.io.IOException;
 public class ClassCodeGen {
     public void generateClassCode(ClassNode classNode) {
         ClassWriter classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS);
-        classWriter.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, classNode.name, null,
+        Mapper mapper = new Mapper();
+        classWriter.visit(Opcodes.V1_8, mapper.mapAccesTypeToOpcode(classNode.accessType), classNode.name, null,
                 "java/lang/Object", null);
 
         for (MemberNode memberNode : classNode.members) {
diff --git a/src/main/java/bytecode/FieldCodeGen.java b/src/main/java/bytecode/FieldCodeGen.java
index abe7ebb..8dd6a99 100644
--- a/src/main/java/bytecode/FieldCodeGen.java
+++ b/src/main/java/bytecode/FieldCodeGen.java
@@ -8,6 +8,7 @@ import org.objectweb.asm.Opcodes;
 public class FieldCodeGen {
 
     public void generateFieldCode(ClassWriter classWriter, FieldNode fieldNode) {
-        FieldVisitor fieldVisitor = classWriter.visitField(Opcodes.ACC_PUBLIC, fieldNode.name, "", null, null);
+        Mapper mapper = new Mapper();
+        FieldVisitor fieldVisitor = classWriter.visitField(mapper.mapAccesTypeToOpcode(fieldNode.accessTypeNode), fieldNode.name, "", null, null);
     }
 }
diff --git a/src/main/java/bytecode/Mapper.java b/src/main/java/bytecode/Mapper.java
new file mode 100644
index 0000000..872f8e1
--- /dev/null
+++ b/src/main/java/bytecode/Mapper.java
@@ -0,0 +1,17 @@
+package bytecode;
+
+import ast.AccessTypeNode;
+import ast.EnumAccessTypeNode;
+import org.objectweb.asm.Opcodes;
+
+public class Mapper {
+    public int mapAccesTypeToOpcode(AccessTypeNode type) {
+        switch (type.enumAccessTypeNode) {
+            case EnumAccessTypeNode.PUBLIC:
+                return Opcodes.ACC_PUBLIC;
+            case EnumAccessTypeNode.PRIVATE:
+                return Opcodes.ACC_PRIVATE;
+        }
+        return 0;
+    }
+}
diff --git a/src/main/java/bytecode/MethodCodeGen.java b/src/main/java/bytecode/MethodCodeGen.java
index c7c1bd3..6f217ac 100644
--- a/src/main/java/bytecode/MethodCodeGen.java
+++ b/src/main/java/bytecode/MethodCodeGen.java
@@ -7,8 +7,9 @@ import org.objectweb.asm.Opcodes;
 
 public class MethodCodeGen {
     public void generateMethodCode(ClassWriter classWriter, MethodNode methodNode) {
+        Mapper mapper = new Mapper();
         MethodVisitor constructor =
-                classWriter.visitMethod(Opcodes.ACC_PUBLIC,
+                classWriter.visitMethod(mapper.mapAccesTypeToOpcode(methodNode.visibility),
                         "<init>",
                         "()V",
                         null,