You can't learn everything quickly

Question

I just finished learning Python and I've been pretty happy with using challenge mode with Java and Python (despite a few issues). I was hoping that maybe you could choose to only receive challenges from the languages that you know. I feel bad declining all the challenges for c++ and JavaScript, because I don't know those get :p

Answer 1

If you want to improve your competency in other languages, the best thing to do (in my opinion) is to jump right into creating some little projects.

Code to learn, rather than learn to code. ;)