ImageDisplay

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

public class ImageDisplay extends JFrame{

    private JPanel imagePanel;
    private JPanel buttonPanel;
    private JLabel imageLabel;
    private JButton button;
    private String[] images = {"C:\\Users\\Compsci\\Documents\\1031275\\workspace\\cat1.gif",
                               "C:\\Users\\Compsci\\Documents\\1031275\\workspace\\cat2.gif",
                               "C:\\Users\\Compsci\\Documents\\1031275\\workspace\\cat3.gif",
                               "C:\\Users\\Compsci\\Documents\\1031275\\workspace\\cat4.gif"};

    public ImageDisplay()
    {
        super("Image Rotator");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new BorderLayout());

        buildImagePanel();
        buildButtonPanel();

        add(imagePanel, BorderLayout.CENTER);
        add(buttonPanel, BorderLayout.SOUTH);

        pack();
        setVisible(true);
    }

    public void buildImagePanel()
    {
        imagePanel = new JPanel();
        imageLabel = new JLabel("");
        ImageIcon img = new ImageIcon(images[0]);
        imageLabel.setIcon(img);
        imagePanel.add(imageLabel);
    }

    public void buildButtonPanel()
    {
        buttonPanel = new JPanel();
        button = new JButton("Change Image");
        button.addActionListener(new ButtonListener());
        buttonPanel.add(button);
    }

    private class ButtonListener implements ActionListener
    {
        private int index = 0;
        public void actionPerformed(ActionEvent e)
        {
            imageLabel.setIcon(new ImageIcon(images[index]));
            index++;
            pack();
            if (index == images.length)
                index = 0;
        }
    }

    public static void main(String[] args)
    {
        new ImageDisplay();
    }

}