import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class SampleButton {

	// set up GUI
	public static void main(String args[]) {
		JFrame application = new JFrame("Button Demonstrator");
		application.setLayout(new FlowLayout());

		// create buttons
		JButton button = new JButton("Plain Button");
		application.add(button);
		button.addActionListener(new ButtonHandler());
		
		Icon bug1 = new ImageIcon("bug1.png");
		Icon bug2 = new ImageIcon("bug2.png");
		button = new JButton("Fancy Button", bug1);
		button.setRolloverIcon(bug2);
		application.add(button);
		button.addActionListener(new ButtonHandler());
		
		application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		application.setSize(275, 200);
		application.setVisible(true);
	}
}

class ButtonHandler implements ActionListener {

		// handle button event
		public void actionPerformed(ActionEvent event) {
			JOptionPane.showMessageDialog(null, "You pressed: "
					+ event.getActionCommand());
		}

}

/*******************************************************************************
 * Based on example code from Deitel & Associates, Inc. Prentice Hall. (2002)
*******************************************************************************/