// An applet that appears on the page as a button that says
// "Click me".  When the button is clicked, an informational
// dialog box appears to say Hello from Swing.  This version
// uses an anonymous class as an ActionListener for the button.
// When this file is compiled, it produces two class files,
// HelloSwing2.class and HelloSwing2$1.class.  Both class
// files are required to use the applet.

import javax.swing.*;    // Swing GUI classes are defined here.
import java.awt.event.*; // Event handling class are defined here.

public class HelloSwing2 extends JApplet {

   public void init() {
         // This method is called by the system before the applet
         // appears.  It is used here to create the button and add
         // it to the "content pane" of the JApplet.  An anonymous
            // class is used to create an ActionListener for the button.

      JButton bttn = new JButton("Click Me!");

      bttn.addActionListener( new ActionListener() {
            public void actionPerformed(ActionEvent evt) {
                  // This method is called to respond when the user
                  // presses the button.  It displays a message in 
                  // a dialog box, along with an "OK" button which
                  // the user can click to dismiss the dialog box.
               String title = "Greetings";  // Shown in box's title bar.
               String message = "Another hello from Swing.";
               JOptionPane.showMessageDialog(null, message, title,
                                     JOptionPane.INFORMATION_MESSAGE);
            } // end actionPerformed()
         });

      getContentPane().add(bttn);

   } // end init()
   
} // end class HelloSwing