Question

4.18 Ch 7 Program: Online shopping cart (continued) (C++)

This program extends the earlier "Online shopping cart" program. (solution from previous lab assignment is provided in Canvas).

(1) Extend the ItemToPurchase class per the following specifications:

• Parameterized constructor to assign item name, item description, item price, and item quantity (default values of 0). (1 pt)
• Public member functions
• SetDescription() mutator & GetDescription() accessor (2 pts)
• PrintItemCost() - Outputs the item name followed by the quantity, price, and subtotal
• PrintItemDescription() - Outputs the item name and description
• Private data members
• string itemDescription - Initialized in default constructor to "none"

Ex. of PrintItemCost() output:

Bottled Water 10 @ $1 = $10

Ex. of PrintItemDescription() output:

Bottled Water: Deer Park, 12 oz.

(2) Create three new files:

• ShoppingCart.h - Class declaration
• ShoppingCart.cpp - Class definition
• main.cpp - main() function (Note: main()'s functionality differs from the warm up)

Build the ShoppingCart class with the following specifications. Note: Some can be function stubs (empty functions) initially, to be completed in later steps.

• Default constructor
• Parameterized constructor which takes the customer name and date as parameters (1 pt)
• Private data members
• string customerName - Initialized in default constructor to "none"
• string currentDate - Initialized in default constructor to "January 1, 2016"
• vector < ItemToPurchase > cartItems
• Public member functions
• GetCustomerName() accessor (1 pt)
• GetDate() accessor (1 pt)
• AddItem()
  • Adds an item to cartItems vector. Has parameter ItemToPurchase. Does not return anything.
• RemoveItem()
  • Removes item from cartItems vector. Has a string (an item's name) parameter. Does not return anything.
  • If item name cannot be found, output this message: Item not found in cart. Nothing removed.
• ModifyItem()
  • Modifies an item's description, price, and/or quantity. Has parameter ItemToPurchase. Does not return anything.
  • If item can be found (by name) in cart, check if parameter has default values for description, price, and quantity. If not, modify item in cart.
  • If item cannot be found (by name) in cart, output this message: Item not found in cart. Nothing modified.
• GetNumItemsInCart() (2 pts)
  • Returns quantity of all items in cart. Has no parameters.
• GetCostOfCart() (2 pts)
  • Determines and returns the total cost of items in cart. Has no parameters.
• PrintTotal()
  • Outputs total of objects in cart.
  • If cart is empty, output this message: SHOPPING CART IS EMPTY
• PrintDescriptions()
  • Outputs each item's description.

Ex. of PrintTotal() output:

John Doe's Shopping Cart - February 1, 2016
Number of Items: 8

Nike Romaleos 2 @ $189 = $378
Chocolate Chips 5 @ $3 = $15
Powerbeats 2 Headphones 1 @ $128 = $128

Total: $521

Ex. of PrintDescriptions() output:

John Doe's Shopping Cart - February 1, 2016

Item Descriptions
Nike Romaleos: Volt color, Weightlifting shoes
Chocolate Chips: Semi-sweet
Powerbeats 2 Headphones: Bluetooth headphones

(3) In main(), prompt the user for a customer's name and today's date. Output the name and date. Create an object of type ShoppingCart. (1 pt)

Ex.

Enter customer's name:
John Doe
Enter today's date:
February 1, 2016

Customer name: John Doe
Today's date: February 1, 2016

(4) Implement the PrintMenu() function. PrintMenu() has a ShoppingCart parameter, and outputs a menu of options to manipulate the shopping cart. Each option is represented by a single character. Build and output the menu within the function.

If the an invalid character is entered, continue to prompt for a valid choice. Hint: Implement Quit before implementing other options. Call PrintMenu() in the main() function. Continue to execute the menu until the user enters q to Quit. (3 pts)

Ex:

MENU
a - Add item to cart
d - Remove item from cart
c - Change item quantity
i - Output items' descriptions
o - Output shopping cart
q - Quit

Choose an option:

(5) Implement Output shopping cart menu option. (3 pts)

Ex:

OUTPUT SHOPPING CART
John Doe's Shopping Cart - February 1, 2016
Number of Items: 8

Nike Romaleos 2 @ $189 = $378
Chocolate Chips 5 @ $3 = $15
Powerbeats 2 Headphones 1 @ $128 = $128

Total: $521

(6) Implement Output item's description menu option. (2 pts)

Ex.

OUTPUT ITEMS' DESCRIPTIONS
John Doe's Shopping Cart - February 1, 2016

Item Descriptions
Nike Romaleos: Volt color, Weightlifting shoes
Chocolate Chips: Semi-sweet
Powerbeats 2 Headphones: Bluetooth headphones

(7) Implement Add item to cart menu option. (3 pts)

Ex:

ADD ITEM TO CART
Enter the item name:
Nike Romaleos
Enter the item description:
Volt color, Weightlifting shoes
Enter the item price:
189
Enter the item quantity:
2

(8) Implement remove item menu option. (4 pts)

Ex:

REMOVE ITEM FROM CART
Enter name of item to remove:
Chocolate Chips

(9) Implement Change item quantity menu option. Hint: Make new ItemToPurchase object and use ItemToPurchase modifiers before using ModifyItem() function. (5 pts)

Ex:

CHANGE ITEM QUANTITY
Enter the item name:
Nike Romaleos
Enter the new quantity:
3

C++ using vectors

my work form past code:

MAIN.CPP

#include

#include

#include "ItemToPurchase.h"

using namespace std;

//main

int main()

{

    //Declareimg objects

          ItemToPurchase p1,p2;

     string myName;

//string name

       int myPrice,myQuant;

    //Get item1

       cout<<"Item 1"<

       cout<<"Enter the item name:";

       getline(cin,myName);

       cout<<"Enter the item price:";

       cin>>myPrice;

       cout<<"Enter the item quantity:";

       cin>>myQuant;

       p1.SetName(myName);

       p1.SetPrice(myPrice);

       p1.SetQuantity(myQuant);

       cin.ignore();

       //Get item2 details

       cout<<"\nItem 2"<

       cout<<"Enter the item name:";

    getline(cin,myName);

       cout<<"Enter the item price:";

       cin>>myPrice;

       cout<<"Enter the item quantity:";

       cin>>myQuant;

    p2.SetName(myName);

    p2.SetPrice(myPrice);

    p2.SetQuantity(myQuant);

  

    //print total cost

    cout<<"\nTOTAL COST"<

     cout << p1.GetName() << " " << p1.GetQuantity() << " @ $"<

     cout << p2.GetName() << " " << p2.GetQuantity() << " @ $"<

     cout<<"\nTotal: $" << p1.GetQuantity()*p1.GetPrice()+p2.GetQuantity()*p2.GetPrice() << endl;

       system("pause");

    return 0;

}

ItemtoPurchase.cpp

#include

#include

#include "ItemToPurchase.h"

using namespace std;

//Constructor

ItemToPurchase::ItemToPurchase()

{

//Set the default values

itemName="none";

itemQuantity=0;

itemPrice=0;

}

//set itemQuantity
void ItemToPurchase::SetQuantity(int myQuant)

{

itemQuantity = myQuant;

}
//set itemPrice

void ItemToPurchase::SetPrice(int myPrice)
{

itemPrice = myPrice;

}

//set the itemQuantity

//return the itemName

string ItemToPurchase::GetName()

{

return itemName;

}
// set the itemName

void ItemToPurchase::SetName(string myName)

{

itemName = myName;

}

// return the itemPrice

int ItemToPurchase::GetPrice()

{

return itemPrice;

}

// return the itemQuantity

int ItemToPurchase::GetQuantity()

{

return itemQuantity;

}

ItemtoPurchase.h

//Header file

#ifndef _ITEMTOPURCHASE_H

#define _ITEMTOPURCHASE_H

#include

using namespace std;

//Declare class ItemToPurchase

class ItemToPurchase

{

//Declare the needed variables

private:

int itemPrice;

int itemQuantity;

string itemName;

public:

//Constructor

ItemToPurchase();

//Setter methods

void SetName(string myName);

void SetPrice(int myPrice);

void SetQuantity(int myQuant);

string GetName();

int GetPrice();

int GetQuantity();

};

#endif

Answer 1

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You
_________________

// ItemToPurchase.h

#ifndef ITEMTOPURCHASE

#define ITEMTOPURCHASE

#include <iostream>

#include <string>

using namespace std;

class ItemToPurchase {

public:

ItemToPurchase();

ItemToPurchase(string, string, int, int); // constructor

void SetName(string);

void SetPrice(int);

void SetQuantity(int);

void SetDescription(string);

void PrintItemCost();

void PrintItemDescription();

string GetName() const;

int GetPrice() const;

int GetQuantity() const;

string GetDescription() const;

private:

string itemName;

int itemPrice;

int itemQuantity;

string itemDescription;

};

#endif

___________________

// ItemToPurchase.cpp

#include <iostream>

#include <string>

#include "ItemToPurchase.h"

using namespace std;

void ItemToPurchase::SetName(string itemNam) {

itemName = itemNam;

}

void ItemToPurchase::SetPrice(int itemPric) {

itemPrice = itemPric;

}

void ItemToPurchase::SetQuantity(int itemQuantit) {

itemQuantity = itemQuantit;

}

void ItemToPurchase::SetDescription(string itemDescriptio) {

itemDescription = itemDescriptio;

}

string ItemToPurchase::GetName() const {

return itemName;

}

int ItemToPurchase::GetPrice() const {

return itemPrice;}

int ItemToPurchase::GetQuantity() const {

return itemQuantity;}

string ItemToPurchase::GetDescription() const {

return itemDescription;}

ItemToPurchase::ItemToPurchase(string name, string description, int price, int quantity) {

itemName=name;

itemPrice=price;

itemQuantity=quantity;

itemDescription=description;}

ItemToPurchase::ItemToPurchase() {

itemName="";

itemPrice=0;

itemQuantity=0;

itemDescription="";}

void ItemToPurchase::PrintItemCost() {

cout << itemName << " " << itemQuantity << " @ $" << itemPrice << " = $" << itemQuantity * itemPrice << endl;

return;}

void ItemToPurchase::PrintItemDescription() {

cout << itemName << ": " << itemDescription << endl;

return;
}

_______________________

//ShoppingCart.h

#ifndef SHOPPINGCART

#define SHOPPINGCART

#include <string>

#include <vector>

#include "ItemToPurchase.h"

using namespace std;

class ShoppingCart {

public:

ShoppingCart(string cName = "none", string cDate="none");

string GetCustomerName();

string GetDate();

void AddItem(ItemToPurchase);

void RemoveItem(string itemNames);

void ModifyItem(string name);

int GetNumItemsInCart();

int GetCostOfCart();

void PrintTotal();

void PrintDescriptions();

private:

string customerName;

string currentDate;

vector <ItemToPurchase>cartItems;

};

#endif

_____________________

//ShoppingCart.cpp

#include <iostream>

#include <string>

#include "ShoppingCart.h"

using namespace std;

unsigned int i;

// parametrized constructor

ShoppingCart::ShoppingCart(string cName, string cDate){

this->currentDate = "January 1, 2016";

this->currentDate = cDate;

this->customerName = "none";

this->customerName = cName;

}

// function to get name

string ShoppingCart::GetCustomerName(){

return customerName;

}

// function to get date

string ShoppingCart::GetDate( ){

return currentDate;

}

// function to add item

void ShoppingCart::AddItem(ItemToPurchase item){

cartItems.push_back(item);

}

// function to remove item

void ShoppingCart::RemoveItem(string name){

int indx=-1;
  
for(unsigned int i=0;i<cartItems.size();i++)
{
if(cartItems[i].GetName().compare(name)==0)
{
indx=i;
break;
}
}

if(indx!=-1)
{
cartItems.erase(cartItems.begin() + indx);
  

cout<<"** Item Successfully Removed **"<<endl;
}
else if(indx==-1)
{
cout<<"** Item Not Found **"<<endl;
}
  

}

// function to modify item

void ShoppingCart::ModifyItem(string name){
int qty;
int indx=-1;
  
for(unsigned int i=0;i<cartItems.size();i++)
{
if(cartItems[i].GetName().compare(name)==0)
{
indx=i;
break;
}
}

if(indx!=-1)
{
cout<<"Enter New Quantity :";
cin>>qty;
cartItems[indx].SetQuantity(qty);

cout<<"** Item Successfully Modified **"<<endl;
}
else if(indx==-1)
{
cout<<"** Item Not Found **"<<endl;
}
  
  

}

// function to get number of items

int ShoppingCart::GetNumItemsInCart(){

int totItems=0;
for (i = 0; i < cartItems.size(); i++){

totItems = totItems + cartItems.at(i).GetQuantity();

}
return totItems;

}

// function to get cost

int ShoppingCart::GetCostOfCart() {

int total = 0;

for (i = 0; i < cartItems.size(); i++){

total = total + (cartItems.at(i).GetPrice()*cartItems.at(i).GetQuantity());

}

return total;

}

// function to print total

void ShoppingCart::PrintTotal(){

int total = 0;

cout << customerName << "'s Shopping Cart - " << currentDate << endl;

if(cartItems.size() == 0){

cout << "Number of Items: 0" << endl << endl;

cout << "SHOPPING CART IS EMPTY" << endl << endl;

cout << "Total: $0" << endl << endl;

}

else{

cout << "Number of Items: " << this->cartItems.size() + 1 << endl << endl;

for(i = 0; i < this->cartItems.size(); i++){

this->cartItems.at(i).PrintItemCost();

total = total + (this->cartItems.at(i).GetPrice()*this->cartItems.at(i).GetQuantity());

}

cout << endl << "Total: $" << total << endl << endl;

}

}

void ShoppingCart::PrintDescriptions(){

cout << customerName << "'s Shopping Cart - " << currentDate << endl;

cout << "Item Descriptions" << endl;

for(i = 0; i < cartItems.size(); i++){

cartItems.at(i). PrintItemDescription();

}

}

______________________

// main.cpp

#include <iostream>

#include <string>

#include "ShoppingCart.h"

using namespace std;

char PrintMenu()

{

char answer;

cout << "MENU" << endl;

cout << "a - Add item to cart" << endl;

cout << "d - Remove item from cart" << endl;

cout << "c - Change item quantity" << endl;

cout << "i - Output items' descriptions" << endl;

cout << "o - Output shopping cart" << endl;

cout << "q - Quit" << endl

<< endl;

while (true)

{

cout << "Choose an option:" << endl;

cin >> answer;

if (answer == 'a' || answer == 'A')

break;

if (answer == 'd' || answer == 'D')

break;

if (answer == 'c' || answer == 'C')

break;

if (answer == 'i' || answer == 'I')

break;

if (answer == 'o' || answer == 'O')

break;

if (answer == 'q' || answer == 'Q')

break;

}

return answer;

}

ItemToPurchase AddItem()

{

string itemName = "";

string itemDescription;

int itemQuantity;

int itemPrice;

cout << "ADD ITEM TO CART" << endl;

cout << "Enter the item name:" << endl;

cin.ignore();

getline(cin, itemName);

cout << "Enter the item description:" << endl;

cin.ignore();

getline(cin, itemDescription);

cout << "Enter the item price:" << endl;

cin >> itemPrice;

cout << "Enter the item quantity:" << endl

<< endl;

cin >> itemQuantity;

ItemToPurchase itemToAdd(itemName, itemDescription, itemPrice, itemQuantity);

return itemToAdd;

}

int main()

{

string itemToRemove;

string customerName;

string currentDate;

cout << "Enter customer's name:" << endl;

getline(cin, customerName);

cout << "Enter today's date:" << endl

<< endl;

getline(cin, currentDate);

cout << "Customer name: " << customerName << endl;

cout << "Today's date: " << currentDate << endl

<< endl;

ShoppingCart itemCart(customerName, currentDate);

char answer = PrintMenu();

while (answer != 'q')

{

if (answer == 'o' || answer == 'O')

{

cout << "OUTPUT SHOPPING CART" << endl;

itemCart.PrintTotal();

}

if (answer == 'a' || answer == 'A')

{

itemCart.AddItem(AddItem());

}

if (answer == 'i' || answer == 'I')

{

cout << "OUTPUT ITEMS' DESCRIPTIONS" << endl;

itemCart.PrintDescriptions();

}

if (answer == 'd' || answer == 'D')

{

cout << "REMOVE ITEM FROM CART" << endl

<< "Enter name of item to remove:" << endl;

cin.ignore();

getline(cin, itemToRemove);

itemCart.RemoveItem(itemToRemove);

}

if (answer == 'c' || answer == 'C')
{
  
cin.ignore();
string itemName;
cout<<"Enter the Item name :";
getline(cin,itemName);
itemCart.ModifyItem(itemName);
  
}

if (answer == 'q' || answer == 'Q')
{
break;
}
answer = PrintMenu();

}

}

_______________________

Output:

_______________Thank You