Today was Labor Day, a holiday, so classes didn't meet. That means we have time to look through the book and especially the optional sections. Remember that first C211 exercise? We can do it in Java too, just that the approach may appear a bit too involved at this time to you. (After all the inner workings of big-bang are still mysterious, aren't they?) But at this point, however, your goal should be to just confirm that these programs work for you. There will come a time when they will be second nature to you, so just keep reading.