//Constructor with value parameter
 public MyNode(int value)
 {
     item       = value;
     leftChild  = null;
     rightChild = null;
 }
 //Default Constructor
 public MyBinaryTree()
 {
     root = null;
 }
 //Default Constructor
 public MyNode()
 {
     item       = 0;
     leftChild  = null;
     rightChild = null;
 }