Make that UNIX, given that I'm a Mac user now 
Well I wouldn't dare limit my programming ability by only focusing on one programming language. I think it's a rather silly thing to do (no offence meant though, it's just my personal view), especially with the rate at which the industry is growing. I use Java as my main language, but that hasn't stopped me learning PHP, Ruby, C++, C#, etc. Once exams are over and I'm free, I'll be learning Python as I've only heard good things about it.
The one thing you'll find when using Java (if you decide to do a tutorial or two for fun) is that it is mind-numbingly obvious and intuitive to use. It's a bit like Ruby in that respect...they've designed it with the programmer in mind. You can create a GUI in a couple of lines, and the API unlocks methods for doing pretty much anything.
Well I wouldn't dare limit my programming ability by only focusing on one programming language. I think it's a rather silly thing to do (no offence meant though, it's just my personal view), especially with the rate at which the industry is growing. I use Java as my main language, but that hasn't stopped me learning PHP, Ruby, C++, C#, etc. Once exams are over and I'm free, I'll be learning Python as I've only heard good things about it.
The one thing you'll find when using Java (if you decide to do a tutorial or two for fun) is that it is mind-numbingly obvious and intuitive to use. It's a bit like Ruby in that respect...they've designed it with the programmer in mind. You can create a GUI in a couple of lines, and the API unlocks methods for doing pretty much anything.
