// chap_10\Ex_3.java
// program to demonstrate action listeners and event handlers

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

class Gui extends Frame implements ActionListener, WindowListener 
{
	// constructor
	public Gui(String s)
	{
		super(s);
		setBackground(Color.yellow);
		setLayout(new FlowLayout());
		addWindowListener(this);

		Button pushButton = new Button("press me");
		add(pushButton);
		pushButton.addActionListener(this);
	}

	public void windowClosed(WindowEvent event){}
	public void windowDeiconified(WindowEvent event){}
	public void windowIconified(WindowEvent event){}
	public void windowActivated(WindowEvent event){}
	public void windowDeactivated(WindowEvent event){}
	public void windowOpened(WindowEvent event){}

	public void windowClosing(WindowEvent event)
	{
		System.exit(0);
	}

	public void actionPerformed(ActionEvent event)
	{
		final char bell = '\u0007';

		if (event.getActionCommand().equals("press me"))
		{
			System.out.print(bell);
		}
	}	
}

class Ex_3
{
	public static void main(String[] args)
	{
		Gui screen = new Gui("Example 3");

		screen.setSize(500,100);
		screen.setVisible(true);
	}
}