ImageTest

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

public class ImageTest extends JApplet {
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// public void init() is called by the applet viewer/java virtual machine/browser
//  as one of the first methods of the JApplet
  public void init() {
    // Use a simple flow layout:
    this.getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER));

    // Add the JPanel with the image painted on it to the applet - make it
    // half the height and the full width of the applet:
    this.getContentPane().add(imagePanel("image.jpg",this.getWidth(),(this.getHeight()/2)));

    // Add a JLabel which contains an ImageIcon of the image:
    this.getContentPane().add(new JLabel(new ImageIcon(this.getClass().getResource("image.jpg"))));

    // Repaint the applet so they show up:
    this.getContentPane().repaint();
  }

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  // - - - - - - - - - - - \\
  //  Instance  Variables  \\
  // - - - - - - - - - - - \\
  Image img;  // variable referenced to the image passed to the method:
  int width;  // the width of the JPanel, which is passed to the function:
  int height; // the height of the JPanel, which is passed to the function:

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// imagePanel returns a JPanel of size w x h with the image from the filename passed
//    to it painted on it.

// The advantage to having this as a method or even a separate class is that
//   you don't have to copy-paste code every time you need an image.

//    Precondition:  this supports method getClass(), this is an ImageObserver
//    Postcondition:  returns a JPanel with the image from a file contained in
//                    the jar file painted on it of size w x h
  private JPanel imagePanel(String filename, int w, int h) {
    // Save the local variables to instance variables so the paint method can
    // access them
    width = w;
    height = h;

    // actually extract the image from the jar file, referenced by "img"
    img = Toolkit.getDefaultToolkit().getImage(this.getClass().getResource(filename));

    // create the JPanel that will be returned...
    JPanel j = new JPanel() {
      // override the paint method to include drawing the image on the JPanel
      public void paint(Graphics g) {
          // draw the image on the Jpanel
          g.drawImage(img, 0, 0, width, height, this);
      }
    };
    // Set the JPanel's size to the desired dimentions
    j.setPreferredSize(new Dimension(width, height));

    // finally, return the JPanel to whatever called this method...
    return j;
  }
}