Extra Credit: Learning Enumerated Types

Objectives:

To learn a useful Java structure on your own
To figure out what information you need (and don't need) to solve a problem.
To learn about enumerated types

Due: November 18 before class

Learning Enumerated Types

Java provides a tutorial about enumerated types in Java. Feel free to consult other references. Let me know if you find any that are especially useful.

Creating Your Own Enumerated Type

(Up to 20 points) MPAA Ratings

Create a new enum type that represents the MPAA rating for DVD objects from your MediaItem-based projects. Also include if the movie is not rated. Your new enum type should have a method that, given a person's age, determines if the person should be allowed into a movie and a method that returns the rating as a String in a user-friendly way.

Modify your DVD class to use the new type instead of however you represented ratings before. Create a driver or some kind of test that shows the correctness of your new enum type.

Create a text file called CRITIQUE where you discuss enumerated types. How difficult were these to learn? How easy/difficult it would be to implement this functionality without enumerated types?

Submission

Create a jar file of your project.

Copy your jar file into a ec_enumtypes directory in your turnin directory. Email me to let me know that you submitted the assignment.

Grading (Up to 20 pts extra credit on lab grade)

You will be evaluated based on the following criteria: