It depends on what you want to do. If you want to work on the linux kernel, you need to know C. If you want to work on Ableton Live, you need to know C++. If yo

It depends on what you want to do. If you want to work on the linux kernel, you need to know C. If you want to work on Ableton Live, you need to know C++. If you want to work at Wells Fargo you need to know Java.