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”.

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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”.

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