title: How to Obfuscate java code - android
body: <p>In my android application, i want to generate a random number which follows some rules. I write that method in a class and I don't want the users to see my formula. I am obfuscating my application, but some how by reverse engineering, we can see the methods and classes. How to prevent that class from getting reverse engineered. Once it is obfuscated even i also don't want to open those file. I just call that method from my application.</p>