/**
 * example1.java - an example of an unchecked (Null Pointer) exception
 * @author Richard S. Huntrods
 * @date June 13, 2001
 * @version 1.0
 *
 */

import java.applet.*;
import java.awt.*;
import java.awt.event.*;

public class Example1 extends Frame {
	// declare two instance Labels
	private Label label1;
	private Label label2;

	public Example1() {
		// instantiate label1
		label1 = new Label("Greetings");
		// label1 is instantiated.  It will work fine
		add(label1);

		// label2 has not been instantiated. It will generate the exception
		add(label2);

		setSize(200, 100);
		show();
	}

	public static void main(String[] args) {
		Example1 ex1 = new Example1();

		ex1.addWindowListener(
			new WindowAdapter() {
				public void windowClosing(WindowEvent e) {
					System.exit(0);
				}
			}
		);
	}
}