I still have problems creating abstract inner classes?

[josephine chen]

I am able to craete abstarct static inner classes but not
abstract inner classes
does anybody know how to craete ?Eg please!!

[paul wheaton]

Here ya go!

public class Demo
{
    abstract class Bovine
    {
        abstract String verbage();
    }
    class Cow extends Bovine
    {
        String verbage()
        {
            return "moooooo" ;
        }
    }
    Demo()
    {
        Bovine b = new Cow();
        System.out.println( b.verbage() );
    }
    public static void main( String[] args )
    {
        new Demo();
    }
}

It works too!

[josephine chen]

class T{
abstract class I{
I(){T t = new T();
}
void method(){};
}
class Ne extends T.I{
void method (){
System.out.println("asD");
}
public static void main(String s[]){
Ne n = new Ne();
n.method();
}
}
/*
This is the error iam getting
No enclosing instance of class T is in
scope; cannot create a default
constructor for class Ne.
class Ne extends T.I{
^*/

[Thiru Thangavelu]

The problem with your code is, you are trying to extend an non-static class with without instantiation.
See the I in this -->class Ne extends T.I
This code can be successfully compied if you make the line ----> abstract class I{ ----> static abstract class I{
Let me know if you have probs.

[Francisco A Guimaraes]

another way to solve the problem:

class WithInner {
abstract class Inner {
public void foo() {
System.out.println("foo!");
}
}
}
public class Test extends WithInner.Inner {
Test(WithInner wi) {
wi.super();
}
public static void main(String [] args) {
WithInner wi = new WithInner();
Test test= new Test(wi);
test.foo();
}
}

I know it�s a little more complicated, but i think it�s an worthy alternative. I took this example from Eckel�s "Thinking in Java".
Francisco