How to create a trial version application in java

hai,
i'm developing an application in java. i have to made this application as a 30 days trial version... if the customer copy the application and paste it in another system it should not work.. how to perform this task.. i'm new to this task.
any one help me

if the customer copy the application and paste it in another system it should not work..That is an extremely hard requirement. You would need to write self modifying code to stop the installer from functioning after its first successful run. Other than that, Java has good cryptography support, and you can make your app writes out the birthday of the time bomb alone with a signature to avoid tempering.

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Regards,
Saurabh Seth

Hi
It will be very helpful if you share your code.
Warm Regards
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How to create a directory in application server

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rogdav
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How to create a trial version application in java

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