Question

20.1 LAB*: Warm up: Online shopping cart (Part 1)

in C++ Please: The answers are already on chegg are not working.

(1) Create three files to submit:

• ItemToPurchase.h - Class declaration
• ItemToPurchase.cpp - Class definition
• main.cpp - main() function

Build the ItemToPurchase class with the following specifications:

• Default constructor
• Public class functions (mutators & accessors)
• SetName() & GetName() (2 pts)
• SetPrice() & GetPrice() (2 pts)
• SetQuantity() & GetQuantity() (2 pts)
• Private data members
• string itemName - Initialized in default constructor to "none"
• int itemPrice - Initialized in default constructor to 0
• int itemQuantity - Initialized in default constructor to 0

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

Ex:

Item 1
Enter the item name:
Chocolate Chips
Enter the item price:
3
Enter the item quantity:
1

Item 2
Enter the item name:
Bottled Water
Enter the item price:
1
Enter the item quantity:
10

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

Ex:

TOTAL COST
Chocolate Chips 1 @ $3 = $3
Bottled Water 10 @ $1 = $10

Total: $13

#include
using namespace std;

#include "ItemToPurchase.h"

int main() {

/* Type your code here */

return 0;
}

Answer 1

/*Test program that prompts user to enter the name of the item, item price and item quantity
and then find the total amount , display the results to console window.*/

//ItemToPurchase.cpp
#include<iostream>
//include the header file ItemToPurchase.h
#include "ItemToPurchase.h"
using namespace std;
//start of main function
int main()
{
   //declare variables
   string itemName;
   int itemPrice;
   int itemQuantity;

   const int count=2;
   ItemToPurchase items[count];
   /*Read name, price and quantity from user*/
   for(int index=0;index<count;index++)
   {
       cout<<"Item "<<(index+1)<<endl;
       cout<<"Enter the item name:"<<endl;
       getline(cin,itemName);
       cout<<"Enter the item price:"<<endl;
       cin>>itemPrice;
       cout<<"Enter the item quantity:"<<endl;
       cin>>itemQuantity;
       //clear the input buffer before reading next input
       fflush(stdin);

       //create an object of item
       items[index]=ItemToPurchase();
       items[index].SetName(itemName);
       items[index].SetPrice(itemPrice);
       items[index].SetQuantity(itemQuantity);

   }

   int total=0;
   int amount=0;
   cout<<"TOTAL COST"<<endl;
   for(int index=0;index<count;index++)
   {
       amount=items[index].GetQuantity()*items[index].GetPrice();
       cout<<items[index].GetName()<<" "<<items[index].GetQuantity()<<"@ $"<<items[index].GetPrice()
           <<"=$"<<amount<<endl;
      
       //add amount to total variable
       total=total+amount;
   }
   //prin total
   cout<<"Total: $"<<total<<endl;

   system("pause");
   return 0;
}

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//ItemToPurchase.h
#ifndef ITEM_PURCHASE_H
#define ITEM_PURCHASE_H
#include<iostream>
#include<string>
using namespace std;
class ItemToPurchase
{
private:
   //instance variables
   string itemName;
   int itemPrice;
   int itemQuantity;

   //public methods
public:
   ItemToPurchase();
   //Setter methods
   void SetName(string);
   void SetPrice(int);
   void SetQuantity(int);
   //Getter methods
   string GetName();
   int GetPrice();
   int GetQuantity();
}; //end of the class
#endif ITEM_PURCHASE_H

------------------------------------------------------------------------------------------------------------------

//ItemToPurchase.cpp

//Implemenation file for ItemToPurchase header file
#include<iostream>
#include "ItemToPurchase.h"
using namespace std;
ItemToPurchase::ItemToPurchase()
{
   itemName="none";
   itemPrice=0;
   itemQuantity=0;
}
//Setter methods
void ItemToPurchase::SetName(string name)
{
   itemName=name;
}
void ItemToPurchase::SetPrice(int price)
{
   itemPrice=price;
}
void ItemToPurchase::SetQuantity(int quantity)
{
   itemQuantity=quantity;
}
//Getter methods
string ItemToPurchase::GetName()
{
   return itemName;
}
int ItemToPurchase::GetPrice()
{
   return itemPrice;
}
int ItemToPurchase::GetQuantity()
{
   return itemQuantity;
}

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Sample Output: