public BinaryTree() { this.root = new LLNode(0); }
public void SetRight(LLNode right) { this.right = right; }
public LLNode(int data) { this.data = data; this.left = null; this.right = null; }
public void SetLeft(LLNode left) { this.left = left; }
//constructors public LLNode(int data, LLNode left, LLNode right) { this.left = left; this.right = right; this.data = data; }