There are a couple of solutions of the racquetball simulation, written in a way to give the same results. Neither uses the top-down design we discussed.

You are NOT required to read these solutions. Look at them after the end of the semester when you have tine, if you have interest.familiar

1. The first solution is a "engineering" solution ... the kind written by someone who is familiar with such problems and wants a quick answer. It is not an efficient solution but it does what is required.

2. The second solution looks at the problem in an abstract way, thinking purely in terms of random variables. If you take a class in probability, you will understand this solution approach. You'll notice that because this we were able to avoid the issue of design completely and reduce the problem to one of adding random variables.