How to make an outer class inherited from an inner class?

Question

How can I make something like this work:

class Outer {
  int some_member;

  abstract class InnerBase {
    abstract void method();
  }
}

class OuterExtends         


        

Answer 1

You could do this in OuterExtendsInner:

class OuterExtendsInner extends Outer.InnerBase {
    Outer o;

    OuterExtendsInner(Outer o) {
        o.super();
        this.o = o;
    }

    void method() {
        // now you can reference o.some_member
        int x = o.some_member;
    }
}