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How List the files in directory through Applet code

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I have a "Test.html" file and other supporting directories in "MyFolder"

In Test.html file I have the following tags with other text..

<applet id="listF" code="AppletClass.class" width="1" height="1">
<param name="archive" value="listfiles.jar">

In listfiles.jar, i have a class file called as "AppletClass.class"

In this file ( I am writing following code

/*where folder1 is one of the dependent folder residing with "Test.html"*/

File f=new file("folder1");
File f1[]=f.listFiles();

After adding these lines i repackaged to jar file and accessed Test.html

Now i am getting the following error.. denied ( folder1 read)

I check, the folder doesn't have any permissions.

Please let me know how to list the files and get solution for this problem...
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By default, applets can't access the local file system as a security measure. To get around that, they need to be signed, or the local security policy altered. See HowCanAnAppletReadFilesOnTheLocalFileSystem for details.
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