public void levelOrder(BinaryTreeNode t) {

		LinkedQueue<BinaryTreeNode> q = new LinkedQueue<BinaryTreeNode>();

		while (t != null) {
			System.out.println(t);

			if (t.getlChild() != null)
				q.add(t.getlChild());

			if (t.getrChild() != null)
				q.add(t.getrChild());
			t = q.delete();

		}

	}