Homebrew Programming

Alright, I've been looking into this a little and I need some help. I prefere that this question be asnwered by a programmer, but any help will do. My question is what are the programing languages that homebrew games can be written in. I know you write it in C++ and Lua, but is there anything else. I'm somewhat fluent in java. Can anything be done with that. Also if there are other languages, are there any IDE's you would recommend. Thank you for all your help.

[crait]

As far as IDE's, there are absolutely none for any of the languages that you can use. But debugging is pretty simple natively. All you need to do is blit a list of variables to the screen and use a button like the Note button to hide them. That's what I've always used. You can use this Java-based PSP emulator for the PC to debug and test your games if you don't want to take the risk of ruining your system: http://www.jpcsp.org/
You can use C and C++ to code native executables but other than that, there is a LUA interpreter and a Java emulator-like interpreter. It's here: http://www.pspkvm.org/ Actually, now that I look, it's not really an interpreter. XD
You can use this Ruby interpreter, though. http://www.qj.net/qjnet/psp/psp-homebre ... e-psp.html