No, no they are very, very different. Let me explain:
School: You behave, have a tidy uniform, listen to your teachers.
College (I am referring to 11th and 12th classes): You have your uniform, but don't listen to your stupid teachers, and have the tension of taking the exams that's gonna change you life, but you never work on it.
University: No uniform, no discipline, you don't know who your teachers are, and classroom is your second bedroom i.e. you do what you want, texting, browsing net on your cell etc., and sleep when you feel like it.