How to create an automatic decrypt file

Hi,
I try to create an automatic decrypt file, that 's mean :
I want to send to a user a jar that wrappe the application (which decrypt) and the file parameter.
The user must need only to enter a password to launch the application for decrypting the file.
Is it possible with java.
Many thanks for your help.
Lokmane.

Make a text file containing the line:
Main-Class: myMain
Where you replace myMain with the name of your program. (Full package name if you need it. ie mypackage.myMain)
then execute the command
jar -cfm prog.jar textfile *.class
or
jar -cfm prog.jar textfile package/
if your program is packaged. You must be above the package directory to do the second one.

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