Sections 0101, 0102, 0103 and Honors, Fall 1995

Thursday November 9, 1995

Assigned Reading: 10.1 - 10.3

Handouts (available on-line): none

Topics Covered:

• Reviewed the pig latin program designed in previous class. Sample runs. It turns out that the class chose a pretty poor top down design. The functions rely too much on global variables, and it is difficult to describe what each function must do. While this program works correctly, and might even be faster than programs using some other design, it is very difficult to add new features to this program. For example, if we were to extend the first version of the program to contract white space into a single space, we would have to change every function in the program (except IsVowel). Second version and sample run.

• We discussed Simple uses for arrays. Possible dire consequences from the misuse of arrays were mentioned to scare the students to pay closer attention to the array indices.

• A program that uses arrays to count the number of times that each letter appears in an array. Sample runs.