Java : inherits a generic type [duplicate]

Question

Possible Duplicate:
Extend from Generic Supertype?

Hi everyone. I come from C++ and I loooved working with templates. I would like, in Java, to "insert" a node into the inheritance tree at a particular point. ... I think code would be more explicit :

public class MyClass<E> extends E {}

It would work fine with C++ templates but java gives me a "cannot refere to type parameter as supertype". Is there a way to do that in java ?

Thanks for your help ;)

Answer 1

To understand the problem with the code you tried, consider what would happen if E were, say, Integer?

You can do what you want with nodes that contain generic data:

public class Node<T> {
    T data;
    // other tree bookkeeping fields
}

Then you can define subclasses:

public class ThreadedTreeNode<T> extends Node<T> {
    // even more bookkeeping fields
}