/*  
 *  ===========================================================================
 *  HelloSwing.java : A simple Swing applet/application to demonstrate writing
 *  a text string to a label. Notice that this program can be run as both an
 *  applet and standalone Java program.
 *
 *  Written By : Mark Austin                                     February, 2001
 *  ===========================================================================
 */  

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

// This is your Swing applet (by extending JApplet).

public class HelloSwing extends JApplet {

    public void init() {

        // Here is the only program statement.
        // Create a string label to display the text.
        // The label is added to the content pane 
        // of the applet (see Code Details).

        getContentPane().add(new JLabel(
            "My first applet -- let's swing!",
            JLabel.CENTER));
    }

    // When you run this program as an application.
    // The main method to instantiates the application frame.

    public static void main( String[] args ) {

        // Create a Swing frame.

        JFrame f = new JFrame("My first applet -- let's swing!");

        // Create an instance of the HelloSwing applet.

        HelloSwing helloSwingApplet = new HelloSwing();

        // Initialize the applet instance.

        helloSwingApplet.init();
        
        // Add the applet to the JFrame (to it's content pane).

        f.getContentPane().add( helloSwingApplet );

        // Add the listener to close the frame.

        f.addWindowListener(new WindowEventHandler());

        // Assign the frame size and display it.

        f.setSize(300, 200); // frame: width=300, height = 200
        f.show();            // Display the frame
    }
}

// =================================================
// Class to close the frame and exit the application.
// =================================================

class WindowEventHandler extends WindowAdapter {
    public void windowClosing(WindowEvent e) {
        System.exit(0);
    }
}