Java, CSS and Html at uts
Depends what course/majors.
Bscit you also do a bit of c++, ICT Eng (Software) you'll never touch CSS or html but have some asm and C subjects.
As for the first question, learning any language will help - and its probably better you learn something completely different to what you learn in uni anyway. There's lot of good resources for beginners around for JavaScript and Python - so maybe give one of those a go.
Edit: I should also probably mention there are a lot of very bad old resources for JavaScript too, use something relatively new.