Comment by voidfunc

Older programmer: Nobody gives a shit about your code and nobody thinks about you as much you think they do :)

Practically it may be worth keeping code for a particular class private for the duration of the term, semester whatever so you dont get into a sticky situation where a classmate copies it and now youre defending against plagiarism and have to prove to the professor you wrote it first.

But really beyond that, nobody cares.