Can jar files be decompiled to get original source?

I have a maj开发者_Python百科or problem that happened to me. I am writing a program that has taken me 3 months+ to make and today I accidentally deleted the source code.

I am working in NetBeans and I had just cleaned and built it, so I still have the working .jar file. The program was saved on a flash drive, not my computer, so the classes are not in the recycling bin.

Can anyone tell me about how I can go about getting my source code back?

Unless you explicitly packaged your source code in the JAR file, there's no way to get back the original source. You could try using a decompiler (like this) but that will hardly give you nice, readable code.

The best solution would be to stop using your computer right now. Then use a recovery tool to recover your deleted files. The more recently it was deleted, the higher the chance you'll get it back. There are lots of tools that can be used to do this (just Google it).

You can use a decompiler ( see How to decompile a whole Jar file? ) but you won't be getting "original" source back.