self-review questions (page 373)
6.1 through 6.8, 6.10

exercises (page 374)
6.1, 6.3, 6.4, 6.5

another exercise -
Write a method aveArray which takes an array of integers as a parameter and returns the floating point average (as a double).

Write a method largest which takes an array of integers as a parameter and returns the largest value stored in the array.