
9.10 Exercises,Problems,and Projects 645
EXERCISES,PROBLEMS, AND PROJECTS
85. Write a method that takes an ArrayList of Integer objects and returns an
ArrayList of Character objects of the same size. The returned elements
of the ArrayList are assigned a letter grade corresponding to the integer
grade of the same index element of the ArrayList parameter (A if 90 or
above, . . ., F if less than 60). Include code to test your method.
9.10.7 Programming Projects
86. Write a class (and a client class to test it) that encapsulates statistics
for summer job salaries for a group of people over several years. Your
only instance variable should be a two-dimensional ...