In one of my first programming classes, I remember asking my instructor why "System.out.println()" has the periods between System, out and println. All I got back was a "thats just how it is". This really pissed me off and I ignored that instructor for the rest of the semester. Passed the class but since I didn't bother to self study either, wasted a lot of time resources. Hindsight, should have looked it up myself.