interface with a concrete inner class...

[vijayender madura]

Hi guys,
i came across an interface with a concrete inner class ...

public interface IA {

      public class A{
             private int a;
      }
}

what does that mean? How do we use the inner class?
Could you please gimme a link/resource where i could read up on that or if any of you guys have the time, could you explain this concept over this thread? Thanks

[Steve Luke]

The inner class in the Interface is always public and static. Which means you can use them like this:

public class Whatever
{
    public void method()
    {
        SomeKind.OfNothing clockwork = new SomeKind.OfNothing();
        
        System.out.println("Value: " + clockwork.value);
    }
}

public interface SomeKind
{
    public class OfNothing
    {
        public final int value = 25;
    }
}

To learn more (well for this specific subject there isn't a whole lot more but...) you can always refer to the Interface section of the JLS