Question

Write a program that implements a class called Dog that contains instance data that represent the dog's name and age. • define the Dog constructor to accept and initialize instance data. • create a method to compute and return the age of the dog in "person-years" (note: dog age in person-years is seven times a dog's age). • Include a toString method that returns a one-line description of the dog • Write a driver class called Kennel, whose main method instantiated and updates several Dog objects

Answer 1

Answer:

Dog.java:

Dog{

   //Declare instance variables

   private String name;

   private int age;

   

   //Create the constructor with two parameters, and initialize the instance variables

   public Dog(String name, int age){

       this.name = name;

       this.age = age;

   }

   

   //get methods

   public String getName(){

       return name;

   }

   

   public int getAge(){

       return age;

   }

   

   //set methods

   public void setName(String name){

       this.name = name;

   }

   

   public void setAge(int age){

       this.age = age;

   }

   

   //calculateAgeInPersonYears() method to calculate the age in person years by multiplying the age by 7

   public int calculateAgeInPersonYears(){

       return 7 * getAge();

   }

   

   //toString method to return the description of the dog

   public String toString(){

       return "Name: " + getName() + ", Age: " + getAge() + ", Age in Person Years: " + calculateAgeInPersonYears();

   }

}

Kennel.java:

public class Kennel

{

public static void main(String[] args) {

          //Create two dog objects using the constructor

          Dog dog1 = new Dog("Dog1", 2);

          Dog dog2 = new Dog("Dog2", 5);

          //Print their information using the toString method

          System.out.println(dog1.toString());

          System.out.println(dog2.toString());

          //Update the first dog's name using setName method

          dog1.setName("Doggy");

          System.out.println(dog1.toString());

          //Update the second dog's age using setAge method

          dog2.setAge(1);

          System.out.println(dog2.toString());

}

}

Explanation:

*The code is in Java.

You may see the explanations as comments in the code