For more review and information on methods see Section 1.6 in your text book (pages 18 and 19).
Note: I am putting these here because students have asked them in the past, this is not a reflection of what will be on quizzes.
A: Yes, you can only have 65,535 methods in a class, but usually you don't want that many.
A: The value that is returned does need to be saved into a variable, whether that is a new variable created to hold that number or an in the method the values is being returned to is up to the programmer.