GUI program to edit classes inside a jar file?

Hi,

i need to edit some lines of a class inside a jar file but i cant find the proper tools to do it. Im looking something that decompiles, allows me to edit the decompiled file and then compile it back correctly. I currently use Java Decompiler for decompiling but i dont know how reliable is. Can you please recommend me a good option for this?

Thank you.

You were told on another forum that people weren't going to help you hack somebody else's code. Same applies here.

Crossposted: GUI program to edit classes inside a jar file?