Inheritance: Collections Revisited

Try to answer the following questions without using any other resources except the Java API documentation. 

The relevant Java API pages are: TreeSet, Collection

You have 5 minutes per attempt and unlimited attempts before the deadline for this quiz. There is no penalty to attempting the quiz multiple times; your highest overall score will be kept.

Try taking this quiz on a lab computer. Both exams must be taken on a lab computer, and this allows you to test out the browsers available and change your display settings and bookmarks if needed.

The question order may change in between attempts!