6.20 Warm up: Online shopping cart (Java) Create a program using classes that do

Question

6.20 Warm up: Online shopping cart (Java)

Create a program using classes that does the following using your NetBeans IDE and upload it here:

(1) Create two files to submit:

ItemToPurchase.java - Class definition

ShoppingCartPrinter.java - Contains main() method

Build the ItemToPurchase class with the following specifications:

Private fields

String itemName - Initialized in default constructor to "none"

int itemPrice - Initialized in default constructor to 0

int itemQuantity - Initialized in default constructor to 0

Default constructor

Public member methods (mutators & accessors)

setName() & getName() (2 pts)

setPrice() & getPrice() (2 pts)

setQuantity() & getQuantity() (2 pts)

(2) In main(), prompt the user for two items and create two objects of the ItemToPurchase class. Before prompting for the second item, call scnr.nextLine(); to allow the user to input a new string. (2 pts)

Ex:

(3) Add the costs of the two items together and output the total cost. (2 pts)

Ex:

This should have two components to be submitted called>>>

ItemToPurchase.java

ShoppingCartPrinter.java

Explanation / Answer

ItemToPurchase.java:

public class ItemToPurchase

{

//declaring the private variables

private String itemName;

private int itemPrice;

private int itemQuantity;

//Default constructor with fields

public ItemToPurchase(String itemName, int itemPrice, int itemQuantity) {

super();

//declared the default constructor values as asked

this.itemName = "none";

this.itemPrice = 0;

this.itemQuantity = 0;

}

//Access mutators for the variables

public String getItemName() {

return itemName;

}

public void setItemName(String itemName) {

this.itemName = itemName;

}

public int getItemPrice() {

return itemPrice;

}

public void setItemPrice(int itemPrice) {

this.itemPrice = itemPrice;

}

public int getItemQuantity() {

return itemQuantity;

}

public void setItemQuantity(int itemQuantity) {

this.itemQuantity = itemQuantity;

}

}

ShoppingCartPrinter.java:

import java.util.Scanner;

public class ShoppingCartPrinter {

public static void main(String[] args) {

//initiating the variables

String itemName="";

int price = 0;

int quantity = 0;

//Initiating the scanner object

Scanner sc = new Scanner(System.in);

//Creating 2 objects of ItemToPurchase.java for two items to be entered

ItemToPurchase item1 = new ItemToPurchase(itemName, price, quantity);

ItemToPurchase item2 = new ItemToPurchase(itemName, price, quantity);

//Prompting the user to enter the details of item1

System.out.println("Item1");

System.out.println("Enter the item name:");

itemName= sc.nextLine();

//storing the item name in the ItemToPurchase.java object item1 using setters(mutators)

item1.setItemName(itemName);

System.out.println("Enter the item price:");

price = sc.nextInt();

//storing the item price in the ItemToPurchase.java object item1 using setters(mutators)

item1.setItemPrice(price);

System.out.println("Enter the item quantity");

quantity = sc.nextInt();

//storing the item quantity in the ItemToPurchase.java object item1 using setters(mutators)

item1.setItemQuantity(quantity);

// calling sc.nextLine() to allow the user to input a new string

sc.nextLine();

//Prompting the user to enter the details of item2

System.out.println("Item2");

System.out.println("Enter the item name:");

itemName= sc.nextLine();

//storing the item name in the ItemToPurchase.java object item1 using setters(mutators)

item2.setItemName(itemName);

System.out.println("Enter the item price:");

price = sc.nextInt();

//storing the item price in the ItemToPurchase.java object item1 using setters(mutators)

item2.setItemPrice(price);

System.out.println("Enter the item quantity");

quantity = sc.nextInt();

//storing the item quantity in the ItemToPurchase.java object item1 using setters(mutators)

item2.setItemQuantity(quantity);

//calculating the total value of item1 and item2

//getting the value of itemprice and itemquantity from ItemToPurchase.java using accessors

int item1total = item1.getItemPrice()*item1.getItemQuantity();

int item2total = item2.getItemPrice()*item2.getItemQuantity();

int total = item1total+item2total;

//Printing the Output with total cost occured

System.out.println("TOTAL COST");

System.out.println(item1.getItemName()+" "+item1.getItemQuantity()+" @ $"+item1.getItemPrice()+" = $"+item1total);

System.out.println(item2.getItemName()+" "+item2.getItemQuantity()+" @ $"+item2.getItemPrice()+" = $"+item2total);

//to create an extra line space as shown in question

System.out.println("");

System.out.println("Total: $"+total);

}

}

Output:

Item1
Enter the item name:
itemA
Enter the item price:
4
Enter the item quantity
9
item2
Enter the item name:
itemB
Enter the item price:
3
Enter the item quantity
7
TOTAL COST
itemA 9 @ $4 = $36
itemB 7 @ $3 = $21

Total: $57

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