Boxball lab assignment

Boxball lab assignment

The assignment BoxBall is now available on the course web page. So that everyone can easily see the start-up files that we will be providing you with, they are also now available through that web page.

Once more we will be asking you to provide a design for your program. To help you understand better what we are looking for, we have provided you with a sample design from last week's homework.

Remember, if you are having difficulty with the labs, try the following:

1. Read over lecture notes including sample programs and text.
2. Make sure you understand last week's lab before starting the following week's. If you understand it, you should be able to hide your solution and write the solution again on your own.
3. Come to the instructors and TA's for help.

If you have any questions about the grading of your labs, please see the instructor. We want you to understand why your program was graded the way it was, and will correct problems with grading if there are any.

Some of you might start seeing run-time errors (the ugly red stuff at the bottom of the eclipse window) indicating that you have a NullPointerException. This generally means that you have sent a message to a variable that has not yet been initialized.

Recall that instance variables representing objects are initialized to null if you don't give them a value. If you send a message to null then the system will crash. Be warned!!

Boxball lab assignment