/** ClickMeAgain.java
    This program illustrates the use of anonymous classes for handlers
    Written by: Stuart Hansen
    Date: September 2008
**/

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

public class ClickMeAgain extends JFrame {
   JButton button;  // Our one and only button

   public ClickMeAgain () {
      // The button is our event source
      button = new JButton("Click me");

      // Register the handler
      button.addActionListener(new ActionListener() {
		   public void actionPerformed (ActionEvent e) {
            JOptionPane.showMessageDialog(null, "I said,  \"Don't do that.\"");
         } }
      );

      // We add the button to the viewable area of the window
      getContentPane().add(button);

      // We set a couple of window properties and then open the main window
      setSize(100, 100);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setVisible(true);
   }
     
   // Event driven program regularly have incredibly simple main programs
   public static void main (String args[]) {
      new ClickMeAgain();
   }    
}