C# or Java or any other languages? Im starting to dabble a little in Java development. I want to learn more because its fun building your own stuff.

 

If you're looking for something to just jump into, and you have an Android, I have a rather large and visible open-source Java project called CASUAL. that's Cross-platform Android Scripting and Universal Auxiliary Loader.

The source is located at http://android-casual.googlecode.com



I've set up nightly releases at http://goo.im/devs/AdamOutler



We provide exploits in an easy to deploy manner for people to unlock their devices. I'm always looking for help and each member has their own contributions or specialty. https://code.google.com/p/android-casual/people/list



I've got quite a few development projects in mind and planned if you'd like some mentorship.. Extra CASUAL Language commands(writing a programming language).. or on the GUI side I've got a great idea to make new CASPACs and design a development environment for the CASUAL language.



But to answer your question, between the two, Java is a much better option. It works on everything and its write-once run-anywhere. C# only really works on Windows.