When exporting my Java Project, It won't export my Assets

Question

I am trying to export my java project to an executable file (a .jar) but it wont bring along the assets with it(such as pictures and things). I am programming with Eclipse. I have looked at other forums about this and try their fixes but it doesn't seem to work for me. I think the problem has something to do with where i put my .gif and .wav. I put them in the same folder as the src folder with my .java files. Here is my code. Thanks for the help!

class ImagePaneTest extends JFrame  
{  
  ImageIcon ic = new   ImageIcon("scary.gif");  
  JDesktopPane dp = new JDesktopPane();  
  JLabel lbl = new JLabel(ic);  
  JPanel transparentPanel = new JPanel();  

  public ImagePaneTest()  
   {  

      lbl.setBounds(0, 0, 553, 421);   

      dp.add(lbl,new Integer(50));  
      dp.add(transparentPanel,new Integer(350));  

      setLayeredPane(dp);  

   }  
   public static void main(String a[])  
   {  

       try {
            Thread.sleep(8000);
        } catch(InterruptedException ex) {
            Thread.currentThread().interrupt();
        }

       ImagePaneTest fr = new ImagePaneTest();  
       Image icon = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB_PRE);
       fr.setIconImage(icon);

       fr.setSize(553,421);   
       fr.setVisible(true);
       fr.toFront();
       fr.setLocation(370, 200);

       sound play = new sound();
       play.playSound("wail.wav");
       System.exit(0);
   }  

}

Answer 1

You need to specify it from . (dot)

Let's suppose this class

import java.awt.Image;
import java.awt.image.BufferedImage;

import javax.swing.ImageIcon;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

class ImagePaneTest extends JFrame
{
    ImageIcon       ic                  = new ImageIcon("./images/nice.jpg");
    JDesktopPane    dp                  = new JDesktopPane();
    JLabel          lbl                 = new JLabel(ic);
    JPanel          transparentPanel    = new JPanel();

    public ImagePaneTest()
    {

        lbl.setBounds(0, 0, 553, 421);

        dp.add(lbl, new Integer(50));
        dp.add(transparentPanel, new Integer(350));

        setLayeredPane(dp);

    }

    public static void main(String a[])
    {
        ImagePaneTest fr = new ImagePaneTest();
        Image icon = new BufferedImage(1, 1, BufferedImage.TYPE_INT_ARGB_PRE);
        fr.setIconImage(icon);

        fr.setSize(553, 421);
        fr.setVisible(true);
        fr.toFront();
        fr.setLocation(370, 200);
    }

}

then you export to jar (not runnable jar) using the default options, except for the main class

then

java -jar my.jar 

and voilà