Re: Binary Tree in java(Generic)

Please help me.I want to make a binary tree in java.I started but
couldnot accomplish.Can anyone help me to complete .Reply soon
please.My Program is:-

import java.io.*;

interface Node {
         T getData();
         int getId();
  }

interface BinTree<T> {
         Node getLeft (Node n);
         Node getRight (Node n);
         Node[] leaves();
         Node parent(Node n);
         int numOfChildren(Node n);
}

class ArrayBinTree<T> implements BinTree<T> {
         class ArrayBinTreeNode<T> implements Node {
               T data;
               int id;
               T getData {return data;}
               int getId {return id;}

}

       ArrayBinTreeNode () { //default constructor
              id = 0;
              data = null;
         }
ArrayBinTree (int s){ //copy constructor
              id = s;
              data = null;
          }

Node[] tree;
int numOfNodes;
BinTree(int size) {
tree = new Node[size];
numOfNodes = 0;
}

Node getLeft(Node n) {
return tree [2*n.getId()+1];
}

Node getRight(Node n) {
return tree [2*n.getId()+2];
}