Change the resolutions of Mobile Java Games

You have to open a *.jar file for example in WinRar and than open file "manifest.mf" from folder "META-INF". Than write there this in the end:

Nokia-MIDlet-Original-Display-Size: 176,208
Nokia-MIDlet-Target-Display-Size: 240,320

First is original resolution of game and the second is the resolution of your phone."

Detailed Info:

Open the jar(with winrar)

->open META-INF(directory)
->Open manifest.mf(drag it to your desktop and open it with notepad)-add the two lines Nokia-MIDlet-Original-Display-Size: 176,208 (the original resolution of the game)

Nokia-MIDlet-Target-Display-Size: 240,320 (the resolution of you phone)

->Drag the edited manifest.mf back to your jar (in meta-inf directory)
->Close Winrar
->Send to phone
->Enjoy!