Java Code

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class  SlideShowUsingButtons  extends  JApplet  implements ActionListener
{
    Image[ ] photos;			 	// array of all your images
    ImageIcon icon;				// images need to be in an ImageIcon
    JLabel imgLabel;				// and stored into a JLabel
    int currentIndex = 0;				// which image index currently displayed
    JButton prev, next;
  public void init( )
  {
      	setLayout( new FlowLayout( ) );
	photos = new Image[4];				// load the images into memory
	photos[0] = getImage( getCodeBase( ), "Cambodia.jpg" );
	photos[1] = getImage( getCodeBase( ), "Czech.jpg" );
	photos[2] = getImage( getCodeBase( ), "NewZealand.jpg" );
	photos[3] = getImage( getCodeBase( ), "Poland.jpg" );
  	icon = new ImageIcon( );
	imgLabel = new JLabel( );
    	imgLabel.setHorizontalAlignment( JLabel.CENTER );   // center all images
	prev = new JButton( "Prev" );
	next = new JButton( "Next" );
	setupIcon( 0 );		 // initialize setup to first display first image (index 0)

  	add( prev );		// add components to applet
  	add( imgLabel ); 	   	
  	add(next );
  	prev.addActionListener(this); 	// add listeners
  	next.addActionListener(this);
  }
  public void setupIcon( int index )	  // method changes the image in the label
  { 					  // & modifies next/prev buttons to be enabled/disabled
	currentIndex = index;
  	icon.setImage( photos[index] );
	imgLabel.setIcon(icon );
	prev.setEnabled( true );		// default both buttons to enabled
        	next.setEnabled( true );
	if( index == 0 )
	     prev.setEnabled( false );
        	if( index == photos.length-1 )
                next.setEnabled( false );
  }
 public void actionPerformed( ActionEvent ae ) 
 {
      	Object obj = ae.getSource( );
      	if ( obj == next )
          	     setupIcon( currentIndex+1 );	// otherwise just increment the index
      	else 
          	     setupIcon( currentIndex-1 );	// otherwise just increment the index
      	repaint( ); 		              // Show the change.
  }
}