Study Questions for Chapter 6:

    -- Self Review (p. 362): 6.1, 6.4-6.6, 6.8, 6.9

    -- Exercises (p. 362): pseudocode for 6.1 and 6.2; 6.11

Definitions/explanations
   Describe the first steps in object-oriented design.
   Describe two ways classes can relate to each other.
   Name and describe two builtin Java interfaces and name a builtin class
     that implements them.