Accessing Pictures from JApplet through JPanel

Hi there!
First of all, Thanks for giving time to read me!
I made a game, which is in JPanel. It accesses some images from the file (JPEGs and GIFs) from local disk.
Now, If I put that JPanel in an Applet (or JApplet), I am getting security errors of can't access files.
I have used URLs in ImageIcons (with "localhost", "file", "filename").
Why is that?
Is there any way of accessing Image files from a JAR package??
Please reply it soon, as i have to submit the game in the competition next week.
Thanks.

Hi there!
One more similar problem... :(
I want to put my Java game (created in JPanel) online through JApplet.
I have put the images & sounds for that online. (e.g. "http://bla.bla.com/images/image.gif").
Now if I run the program in JFrame, it is loading and working fine! But in Applet, I am getting security warnings/errors. Can anyone help please?
Here's the sample code:
public class Game extends JPanel {
URL url = null;
URLConnection con = null;
//Constructor{
try{
url = new URL("http://....../image.gif");
conn = url.openConnection();
}catch(Exception e){/Message}
ImageIcon img = new ImageIcon(url);
}

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Ray receives the JAR file from Susan, imports the certificate, creates a policy file granting the applet access, and runs the applet.
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// A sample policy file that lets a JavaTM program
// create newfile in user's home directory
// Satya N Dodda
grant SignedBy "susan"
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Html code :
</body>
</html>
<OBJECT classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"
width="600" height="400" align="middle"
codebase="http://java.sun.com/products/plugin/1.3/jinstall-13-win32.cab#Version=1,3,1,2">
<PARAM NAME="code" VALUE="SignedAppletDemo.class">
<PARAM NAME="archive" VALUE="SSignedApplet.jar">
<PARAM NAME="type" VALUE="application/x-java-applet;version=1.3">
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</body>
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appletviewer -J-Djava.security.policy=Write.jp
http://aURL.com/SignedApplet.html
Note: Type everything on one line and put a space after Write.jp
The -J-Djava.security.policy=Write.jp option tells Applet Viewer to run the applet referenced in the SignedApplet.html file with the Write.jp policy file.
Note: The Policy file can be stored on a server and specified in the appletviewer invocation as a URL.
9.     Run the Applet in Browser
Download JRE 1.3 from Javasoft
save this to write.jp
keystore "/home/ray/raystore";
// A sample policy file that lets a JavaTM program
// create newfile in user's home directory
// Satya N Dodda
grant {
permission java.security.AllPermission;
save this to signedAppletDemo.java
* File: @(#)SignedAppletDemo.java     1.1
* Comment:     Signed Applet Demo
* @(#)author: Satya Dodda
* @(#)version: 1.1
* @(#)date: 98/10/01
import java.applet.Applet;
import java.awt.Graphics;
import java.io.*;
import java.awt.Color;
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setBackground(Color.white);
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     String s ;
     try {
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     fos.close();
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     e.printStackTrace();
     s = new String("Unable to create file : " + fileName);
     return s;
public void paint(Graphics g) {
g.setColor(Color.blue);
g.drawString("Signed Applet Demo", 120, 50);
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Accessing Pictures from JApplet through JPanel

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