public class testnode  // uses node.java
{
    public static void main(String[] args)
    {
	node<Integer> A, B, C;
	B = new node<Integer>(4,new node<Integer>(3),null);
	C = new node<Integer>(7,new node<Integer>(8),new node<Integer>(9));
        A = new node<Integer>(2,B,C);
	System.out.println(A.size());
	A.printbylevel();

	// graphical representation
	treegraph TG = new treegraph(1024,768);
	TG.drawtree(A);
    }//main
}