Lab 3 CSCI 162

Dr. Wildenberg

This lab has several purposes:

· Use a static test-driver

· Modify a class by adding a method

· Practice careful testing of all methods in a class.

· Use the Unix tool “script” to save tests.

Start by adding a complement method to the Set class. The text has a suggestion with which I very strongly diagree. Please do not use it. Instead, if s1 and s2 are sets, let s1.complement(s2) return s1–s2. In other words let s1.complement(s2) return the set of all elements in s1 but not in s2.

Then write a static test-driver method to test the new method as well as all the other methods in the class. You’ll also need a very small “main” program to call the static test-driver.

Finally, when you are ready to show that everything is working you can use “script” to get a copy of the test results. “Script” is especially useful if your testing has any interactive aspects (often a good idea).