Generat JAR file with resouces such as picture and music!

[magic zha]

I have such program:

  
import javax.swing.*;
import java.awt.*;
 
public class TestPanel extends JPanel {
private Image img = Toolkit.getDefaultToolkit().getImage("picture.jpg");

public void paint(Graphics g){
g.drawImage(img,0,0,this);
}

public static void main(String args[]){
JFrame f = new JFrame();
TestPanel panel = new TestPanel();
f.getContentPane().add(panel);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(200,200);
f.setVisible(true);
}
}

I have generate the jar file by command:
jar cvfm Test.jar mymanifest.mf TestPanel.class
when I double click it,the programe worked and the picture displayed.
But when move the jar file to other place,why dosen't the picture display?
Please help me ,thank you!

[Michael Dunn]

try it like this, if it still doesn't display - check the capitalisation
of the image fileName

import java.net.URL;
import java.awt.*;
import javax.swing.*;
import javax.imageio.ImageIO;
 
class ImageInJar extends JFrame
{
  Image img;
  public ImageInJar()
  {
    loadPicture("TEST.GIF");
    setLocation(200,100);
    setSize(600,300);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    getContentPane().add(new ImagePanel(img));
  }
  public void loadPicture(String path)
  {
    try
    {
      URL url = new URL(getClass().getResource(path), path);
      img = ImageIO.read(url);
    }
    catch(Exception e){JOptionPane.showMessageDialog(null,"URL = null");}
  }
  public static void main(String[] args){new ImageInJar().setVisible(true);}
}
class ImagePanel extends JPanel
{
  Image img;
  public ImagePanel(Image i)
  {
    img = i;
  }
  public void paintComponent(Graphics graphics)
  {
    super.paintComponent(graphics);
    Graphics2D g = (Graphics2D)graphics;
    g.drawImage(img,0,0,getWidth(),getHeight(),this);
  }
}

[magic zha]

I have tried , but still failed.
The programe always display a dialog which indicates the URL=null,and can't display the image.
I use the command:
jar cvfm ImageInJar.jar manifest.mf ImageInJar.class ImagePanel.class TEST.gif

[magic zha]

I have tried , but still failed.
The programe always display a dialog which indicates the URL=null,and can't display the image.
I use the command:
jar cvfm ImageInJar.jar manifest.mf ImageInJar.class ImagePanel.class TEST.gif

[Carol Enderlin]

Your code looks like it is looking for TEST.GIF and your jar command used TEST.gif (upper/lower case difference).

Otherwise it looks like it should work.