package com.coding2017.basic; public class BinaryTreeNode { private Object data; private BinaryTreeNode left; private BinaryTreeNode right; public BinaryTreeNode(Object data) { this.data = data; left = null; right = null; } public Object getData() { return this.data; } public void setData(Object data) { this.data = data; } public BinaryTreeNode getLeft() { return this.left; } public void setLeft(BinaryTreeNode left) { this.left = left; } public BinaryTreeNode getRight() { return this.right; } public void setRight(BinaryTreeNode right) { this.right = right; } public BinaryTreeNode insert(Object o){ return null; } }