private void swapDataMembers(TreeNode t1, TreeNode t2) {
t1.p = t2.p;
t1.left = t2.left;
t1.right = t2.right;
}
// Private method for swapping data
// Copys t2 data into t1
private void swapData(TreeNode t1, TreeNode t2) {
// System.out.println("SWAPPING: " + t1.p.toString() + " " + t2.p.toString());
t1.p = t2.p;
}