/*********************** SplayTreeNode.java ***********************/ public class SplayTreeNode> { protected T el; protected SplayTreeNode left, right, parent; public SplayTreeNode() { left = right = parent = null; } public SplayTreeNode(T el) { this(el,null,null,null); } public SplayTreeNode(T ob, SplayTreeNode lt, SplayTreeNode rt, SplayTreeNode pr) { el = ob; left = lt; right = rt; parent = pr; } }