First year CS student

hi /prog/
I am a first year student and I want to make myself as marketable as possible once I graduate. We started our first class learning to program in Java but I feel like the stuff we learned would be pretty useless elsewhere. so, what language should I try learning on my own now?

"I could have made money this way, and perhaps amused myself writing code. But I knew that at the end of my career, I would look back on years of building walls to divide people, and feel I had spent my life making the world a worse place."

"Value your freedom or you will lose it, teaches history. 'Don't bother us with politics', respond those who don't want to learn."

Richard Stallman