How do I get an inner class to inherit enclosing class' generic type?

Question

I\'m using Java 6.

I\'m having trouble getting my inner class to use the same generic class as its enclosing class. Currently I have

public class          


        

Answer 1

I suspect what you want is something like:

class Tree {
   Node head;

   static class Node {
      List> relatives = new ArrayList>();
      T value;
   }
}

Here, a tree's head node has the same T as the tree itself, and every relative node has the same T as the parent node, so all the nodes in the tree will have the same value type as the tree itself.

I used an ArrayList here because arrays cannot have generic types.