Hum... I guess not. Because the assignment says that "...javadoc style comments must be used for each element of the public interface of each class".
Also does anyone know what percentage of the total marks the exam counts for?? and if we can retake the exam?
Well, I'm not 100% sure about this, but I think the exam is just for them to be sure that you are the guy that built the application. I think it doesn't add any points to your final score. And when you say retake the exam, you mean after submitting the assignment, taking the exam and failing? I'm not 100% sure about this either, but I think in this case, you have to get 2 other vouchers, to submit the assignment again and to take the exam again. Not sure about values $ and if this is really necessary.