@maximilien I'm mostly familiar with Java, I guess if I had to rank my languages by how familiar I am.

1. Java (muh language)
2. Dart (learning, but it's so close to Java)
3. Python (pseudo code, enough said)
4. C (well, I don't use it much but I know basics)
5. Haskell (I'm bad at this, but I want to get better)

What about you?

@waltznr, here is my list
1- c/c++ & python
2- java
3- MATLAB
4-PHP
5-GOLAND

@maximilien I see C/C++ is at the top of the list. You sir, must understand how computers work internally pretty well