9.7 Exercises

See Appendix A, Exercise Answers for the answers.

1. Extend the problem from the last chapter to repeat the operation until the word end is entered for one of the values. (Hint: use an infinite loop, and then do a last if either value is end .)

2. Rewrite the exercise from Chapter 4, Control Structures , summing numbers up to 999, using a loop that exits from the middle. (Hint: use a naked block with a redo at the end to get an infinite loop and a last in the middle based on a condition.)