Question

This assignment shpuld be code in java. Thanks

Overview In this assignment you will write a program that will model a pet store. The program will have a Pet class to model individual pets and the Assignment5 class will contain the main and act as the pet store. Users will be able to view the pets, make them age a year at a time, add a new pet, and adopt any of the pets. Note: From this point on, your assignments will require multiple files. If you want to keep things easily organized, you may want to create a new project within your IDE to keep these files separate from all the others. Requirements Your program must do the following in order to receive full credit on this assignment. 1. Create a new public class called Pet in its own file. a. Remember that class and file name must match. 2. Create three private instance variables. a. b. c. The name of the pet. The age of the pet. Whether the pet is adopted or not. 3. Create a default constructor for the Pet class. Remember that a default constructor takes no arguments and assigns meaningless values to the instance variables. a. 4. Create a second constructor for Pet that takes a name and age as arguments. a. Assign these values to the instance variables. b. Pets always start off un-adopted. 5. 6. Provide a get and set for the name instance variable. Provide a get for age, but instead of a regular set create a method that increases age by 1 a. Keep in mind that this age increase method will need to be public. 7. Provide a get for the adopted variable and instead of a set provide a public method which sets this adoption variable to true. Note: This is the last thing you will do in Pet. The rest of these steps are done in your main program file. a. 8. Create a Scanner object that will be visible to all methods in Assignment5. a. This object will need a particular modifier. What is it?

Answer 1

Pet.java

public class Pet {

//private instance variables

private String petName;

private int age;

private boolean isAdopted;

//default constructor

public Pet()

{

petName = "";

age = 0;

isAdopted = false;

}

//parameterised constructor

public Pet(String pName, int pAge)

{

petName = pName;

age = pAge;

isAdopted = false;

}

//set method for name

public void setName(String pName)

{

petName = pName;

}

//get method for name

public String getName()

{

return petName;

}

//method that sets age

public void ageUp()

{

age = age + 1;

}

//method that gets the age

public int getAge()

{

return age;

}

//method to that adoption

public boolean getIsAdopted()

{

return isAdopted;

}

//method to adopt pet

public void adoptPet()

{

isAdopted = true;

}

}

Assignment5.java

import java.util.Scanner;

public class Assignment5 {

static Scanner input = new Scanner(System.in);

public static void main(String[] args) {

//create two local pet objects

Pet pet1 = new Pet("Fido", 3);

Pet pet2 = new Pet("Furball", 1);

//create a third local pet object

Pet pet3 = null;

String userChoice;

//display the welcome message

System.out.println("Welcome to the Pet store!");

//display menu and get the user choice

userChoice = displayMenu();

//run a loop until E is entered

while(!(userChoice.equals("E")))

{

//run a switch case based on user choice

switch(userChoice)

{

case "A":

//print the details of pet1

System.out.print(pet1.getName() + " is " + pet1.getAge());

if(pet1.getAge() > 1)

System.out.print(" years and is ");

else

System.out.print(" year and is ");

if(pet1.getIsAdopted())

System.out.println("adopted.");

else

System.out.println("not adopted.");

//print the details of pet2

System.out.print(pet2.getName() + " is " + pet2.getAge());

if(pet2.getAge() > 1)

System.out.print(" years and is ");

else

System.out.print(" year and is ");

if(pet2.getIsAdopted())

System.out.println("adopted.");

else

System.out.println("not adopted.");

//print the details of pet3 if not null

if(pet3 != null)

{

System.out.print(pet3.getName() + " is " + pet3.getAge());

if(pet3.getAge() > 1)

System.out.print(" years and is ");

else

System.out.print(" year and is ");

if(pet3.getIsAdopted())

System.out.println("adopted.");

else

System.out.println("not adopted.");

}

break;

case "B":

//increase the age of all pets

pet1.ageUp();

pet2.ageUp();

//if pet3 is not null then increase its age

if(pet3 != null)

pet3.ageUp();

System.out.println("Everyone just got a little older.");

break;

case "C":

//check if pet3 doesn't exist

if(pet3 == null)

{

String name;

int age;

//prompt and read the name and age

System.out.println("Please type in a name.");

name = input.nextLine();

System.out.println("Type in an age");

age = Integer.parseInt(input.nextLine());

//instantiate pet3

pet3 = new Pet(name, age);

System.out.println(pet3.getName() + " has arrived in the store.");

}

//if pet3 exists then print the store is full

else

{

System.out.println("Sorry, the store is full.");

}

break;

case "D":

int number;

//read the number of the pet to be adopted

System.out.println("Type the number of the pet you would like to adopt.");

System.out.println("The number is the order they appear in the list.");

number = Integer.parseInt(input.nextLine());

//if number is 1 the adopt pet1

if(number == 1)

{

pet1.adoptPet();

System.out.println(pet1.getName() + " was adopted!");

}

//if number is 2 the adopt pet2

else if(number == 2)

{

pet2.adoptPet();

System.out.println(pet2.getName() + " was adopted!");

}

//if number is 3 the adopt pet3 only if it is not null

else if(number == 3)

{

if(pet3 != null)

{

pet3.adoptPet();

System.out.println(pet3.getName() + " was adopted!");

}

//else print error message

else

{

System.out.println("That is not a valid pet.");

}

}

//else print error message

else

System.out.println("That is not a valid pet.");

break;

}

//display the menu again

userChoice = displayMenu();

}

//display good bye message

System.out.println("Have a good day!");

input.close();

}

//method that displays menu and reads the user choice

private static String displayMenu()

{

String choice;

//print the menu

System.out.println("Type the letter to make your selection.");

System.out.println("A. List the pets in the store.");

System.out.println("B. Age up the pets.");

System.out.println("C. Add a new pet.");

System.out.println("D. Adopt a pet.");

System.out.println("E. Quit.");

//read the choice

choice = input.nextLine();

//accept input until a valid choice is entered

while(!(choice.equals("A") || choice.equals("B") || choice.equals("C")

|| choice.equals("C") || choice.equals("E")))

{

System.out.println("Invalid choice.");

choice = input.nextLine();

}

return choice;

}

}

Outputs

$貝Console X «terminated> AssignmentS Java Application C:\Program Files Java rel·80151\binyavav exe (Oct 10, 2018, 11:23:29 AM Welcome to the Pet store! Type the letter to make your selection a. List the pets in the store. b. Age up the pets c. Add a new pet d. Adopt a pet e. Quit Fido is 3 years and is not adopted Furball is 1 year and is not adopted Type the letter to make your selection a. List the pets in the store. b. Age up the pets c. Add a new pet d. Adopt a pet e. Quit Have a good day!$