How to change any Java app's MIDlet name?

[Abissor Swordzenorbe]

1.) Make the backup of your app (.jar file) in case if you got error after changing name.
2.) Open your .jar file using winrar or 7zip.
3.) Find in your Rar Explorer file called manifest.
4.) Open it with notepad application.
5.) In notepad find the thread called jar name or sth.
6.) Change it for what you want.
7.) Save changed manifest file in your .jar file (by saving and notepad and using update method in winrar).
8.) Copy new file on your sd card or phone and try to install it.
9.) If it was installed without any error (and opened too), so bravo. It's Done ;-)