> **Possible Duplicate:**
> [How are Software License Keys generated?](https://stackoverflow.com/questions/3002067/how-are-software-license-keys-generated)
I am a beginner in software developement and I would like to know how to implement a protection system on my Java app to protect it against piracy. I know that there's no perfect solution. But i just want to know how protect it. And don't tell me to make it open source,it's impossible in my case :).
Thanks for your time and answers. Your java code is compiled, so its source is protected, if you want to protect copied versions of it, there's a similar question here stackoverflow.com/questions/3647255/â€¦
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