Java Code

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JFrameEvents extends JApplet
	implements ActionListener
{
   JFrame frame;
   JPanel buttonspane;
   JButton Bots, Swazi, Thai;
   Image botsImg, zebraImg, thaiImg;
   ImageIcon icon;
   JLabel label;

   public void init( )
   {
	setLayout( new BorderLayout( ) );
   	setupImages( );
   	setupButtons( );
   }

   public void setupButtons( )
   {
   	Bots = new JButton( "<HTML>Botswana<BR>animals" );
	Swazi = new JButton( "Swaziland Zebra" );
	Thai = new JButton( "Thailand" );
	Bots.addActionListener( this );                      // add listeners
	Swazi.addActionListener( this );
	Thai.addActionListener( this );

	buttonspane = new JPanel( new GridLayout(3,1) );
	buttonspane.add( Bots );
	buttonspane.add( Swazi );
	buttonspane.add( Thai );
	add( buttonspane, BorderLayout.CENTER );
   }
   public void setupImages( )
   {
   	botsImg = getImage( getCodeBase( ), "Botswana.jpg" );
   	zebraImg = getImage( getCodeBase( ), "Swazi_Zebra.jpg" );
   	thaiImg = getImage( getCodeBase( ), "Thailand.jpg" );
	icon = new ImageIcon( botsImg );       // start with the pc image
	label = new JLabel( icon );
   }
   public void actionPerformed( ActionEvent ae )
   {
	Object src = ae.getSource( );

	 //1. Create the frame.
	frame = new JFrame("FrameDemo");	
	//2. Set layout manager
	frame.setLayout( new BorderLayout( ) );
	//3. Create components and put them in the frame.
	if( src == Bots )
	{
		icon.setImage( botsImg );
		label.setIcon( icon );
	}
	else if ( src == Swazi )
	{
		icon.setImage( zebraImg );
		label.setIcon( icon );
	}
	else if ( src == Thai )
	{
		icon.setImage( thaiImg );
		label.setIcon( icon );
	}
	frame.add(label, BorderLayout.CENTER);
	
	//4. Size the frame.
	frame.pack( );	
	//5. Show it.
	frame.setVisible(true);
   }
}
©2006 by E.S.Boese. All Rights Reserved