Chapter 5.3, Problem 31STQ

Explanation of Solution

Reasons for displaying the given output:

• • From the given code of “ExerciseProgram”
  • ○ The variable “s1” is the object of “Species” class.
  • ○ The variable “mysteryMaker” is the object of “ExerciseClass” class.
  • ○ The statement “int n = 0;” implies initializes the variable “n” to “0”.
  • ○ The statement “s1.setSpecies("Hobbit", 100, 2);” implies call the method “setSpecies” for object “s1” with arguments of “Hobbit” for name, “100” for population and “2” for growth rate.
    • ■ Now “s1” contains “Hobbit” for name, “100” for population and “2” for growth rate.
  • ○ The statement “mysteryMaker.mystery(s1, n)” implies call the method “mystery” for object “mysteryMaker” with arguments of “s1” for “Species” class and “n”.
    • ■ In the “ExerciseClass” class, the method “mystery” implies
      • • Call the method “setSpecies” for object “s” with arguments of “Klingon ox” for name, “10” for population and “15” for growth rate...