Grad School Jitters (kinda)

So, I'm actually doing pre-Master's work. I need to take two undergrad courses before starting MS coursework. The first class is Data Structures. I'm supposed to have a Java background (which I do, but i haven't done it in years) which makes me nervous. I'll only be going once a week (blessing in disguise). Luckily there's a satellite campus 5 minutes from my apartment offering the course. Gotta ease myself in. The first class is Thursday. The teacher's first name is Kitty. smh. She better know her stuff!