What you need to do:
Expand the prototype implementation of the project.
Now that you have a basic implementation that gets input, computes something, and prints some output, you can expand the implementation, focusing your effort on expanding the computations and/or adding additional functionality to your program. Remember that this is a three-week assignment. What you turn in should represent five weeks worth of total work (since you are building on the previous assignment) and should include the basic program elements that you learned about from those other assignments, including classes, input/output, error checking, functions, etc., where appropriate.
For this assignment you still do not need to have complete graphics. Asignment 9 will focus more on adding or completing the graphics in your program.