Images are not coming out when application running through jar file.

Question

I have written an application program using j2sdk1.4.1 that needs your help.
My application folder's contents.....................
     C:\Examination\Examination.class <-----This is the main class and application's entry point.
     C:\Examination\ExamBox.class
     C:\Examination\PaperSetterBox.class
     C:\Examination\pspBox.class
     C:\Examination\epBox.class
     C:\Examination\TimerBox.class
     C:\Examination\ReportCardBox.class
     C:\Examination\HelpBox.class
     C:\Examination\AboutBox.class
     C:\Examination\Images\(some jpg & gif files)
     C:\Examination\Sounds\(some au files)
Compilation Report:     There was no error.
Execution Report :     Was working properly using the command:- java Examination
Now, I created a jar file for my application in the following steps.................................
          STEP-1:          Firstly, I created a text file(mainclassInfo.txt) that contains
          the line:--     Main-Class: Examination
          This line would be automatically added to the default manifest file when I would include the                name of that text file with the command to create the jar file.
          Location of the text file I created:     C:\mainClassInfo.txt
          STEP-2:          Then I went to C:\Examination and executed the following command(by using                'Command prompt'):--------------------------------------------------------------------
jar cmf C:\mainClassInfo.txt Examination.jar Examination.class ExamBox.class PaperSetterBox.class pspBox.class epBox.class TimerBox.class ReportCardBox.class HelpBox.class AboutBox.class Images Sounds
Finally, I got the jar file:-     Examination.jar
Double clicking on it application ran as it was expected.
Then, I thought, that as all the files & folders the application needed to run properly were packaged in the jar file; I should delete all the contents of the folder 'Examination', so that no one could see or use anything of the resources easily. I did that.
So, then it became only:-- C:\Examination\Examination.jar
Thereafter, I tried to run the application again and there a problem occurred! The application was running, but the images, those were to be used and shown by the application were missing somehow!!
Moreover, when I kept a copy of those 2 folders('Images' and 'Sounds') into the C:\Examination and ran the application again all the images came out normally!
I just can't understand why it's happening so mysterious?
I don't want to leave anything of the resources in an open place; I mean, outside of the jar file. The images should be used and shown by the application.
Help me please!

Answer 1

double post http://forum.java.sun.com/thread.jspa?threadID=582311