/* 
 * BinTreeTest.java
 * 
 * Test application for the BinTree class.
 *
 * Author:    David Aspinall
 * Copyright: University of Edinburgh, 2001.
 *
 *  BinTreeTest.java,v 1.5 2002/11/29 13:59:44 da Exp
 */

class BinTreeTest {
    public static void main(String[] args) {
        BinTree exprtree = 
            new BinTree(new BinTree(new Integer(20)),
			"-",
			new BinTree(new BinTree(new Integer(3)),
				    "*",
				    new BinTree("x")));
        exprtree.printNodesPreorder();
        System.out.println();
    }
}