Chapter 5, Problem 9PP

Program Plan Intro

Modified “Dog” class

Program Plan:

Modified “Dog.java”:

• • Define “Dog” class.
  • ○ Declare instance variables for “Dog” class.
  • ○ Create accessor and mutator methods to set dog’s name, breed and age.
  • ○ Define “equals” method.
    • ■ This method returns “true”, if name, breed and age of one dog is equal to other dog. Otherwise returns “false”.
  • ○ Define “writeOutput” method for displays all details of dog.
  • ○ Define “getAgeInHumanYears” method as “Listing 5.1” of chapter 5.

“Main.java”:

• • Define “Main” class.
  • ○ Define main function.
    • ■ Create objects “dog1”, “dog2”, “dog3” and “dog4” from “Dog” class.
    • ■ Set name for each object by calling the method “setDogName()”.
    • ■ Set breed for each object by calling the method “setDogBreed()”.
    • ■ Set age for each object by calling the method “setDogAge()”.
    • ■ Call "writeOutput" method for object “dog1” and “dog2”.
    • ■ Check the object of “dog1” and “dog2” are equal or not by calling method “equals”.
    • ■ Check the object of “dog3” and “dog1” are equal or not by calling method “equals”.
    • ■ Check the object of “dog4” and “dog1” are equal or not by calling method “equals”.