Question

Can someone please help me with this Python code? Thank you in advance, Zybooks keeps giving me errors. Thanks in advance!!

This program extends the earlier "Online shopping cart" program. (Consider first saving your earlier program).

(1) Extend the ItemToPurchase class to contain a new attribute. (2 pts)

• item_description (string) - Set to "none" in default constructor

Implement the following method for the ItemToPurchase class.

• print_item_description() - Prints item_description attribute for an ItemToPurchase object. Has an ItemToPurchase parameter.

Ex. of print_item_description() output:

Bottled Water: Deer Park, 12 oz.

(2) Build the ShoppingCart class with the following data attributes and related methods. Note: Some can be method stubs (empty methods) initially, to be completed in later steps.

• Parameterized constructor which takes the customer name and date as parameters (2 pts)
• Attributes
• customer_name (string) - Initialized in default constructor to "none"
• current_date (string) - Initialized in default constructor to "January 1, 2016"
• cart_items (list)
• Methods
• add_item()
  • Adds an item to cart_items list. Has parameter ItemToPurchase. Does not return anything.
• remove_item()
  • Removes item from cart_items list. 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.
• modify_item()
  • 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.
• get_num_items_in_cart() (2 pts)
  • Returns quantity of all items in cart. Has no parameters.
• get_cost_of_cart() (2 pts)
  • Determines and returns the total cost of items in cart. Has no parameters.
• print_total()
  • Outputs total of objects in cart.
  • If cart is empty, output this message: SHOPPING CART IS EMPTY
• print_descriptions()
  • Outputs each item's description.

Ex. of print_total() 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 print_descriptions() 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 section of your code, 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 print_menu() function. print_menu() 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 print_menu() 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
r - 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 before using ModifyItem() method. (5 pts)

Ex:

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

Answer 1

IF YOU HAVE ANY DOUBTS COMMENT BELOW I WILL BE THERE TO HELP YOU

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ANSWER:

EXPLANATION:

CODE:

ShoppingCart.cpp

#include "ShoppingCart.h" #include <iostream> #include<string> using namespace std; ShoppingCart::ShoppingCart(string name = "none", string date = "January 1, 2016") { this->name=name; this->date=date; } const string& ShoppingCart::getDate() const { return date; } void ShoppingCart::setDate(const string& date) { this->date = date; } const string& ShoppingCart::getName() const { return name; } void ShoppingCart::setName(const string& name) { this->name = name; } void ShoppingCart::add(ItemToPurchase &newItem) { int set = 0; if(newItem.GetName().compare("none") != 0) { //vector<ItemToPurchase>::iterator it; //for (it = item.begin() ; it != item.end(); ++it) for(int i=0;i<item.size();i++) { if(item.at(i).GetName() == newItem.GetName()) { cout<<"Item is already in cart. Nothing added."<<endl; set = 1; break; } } if(set == 0) item.push_back(newItem); } } void ShoppingCart::remove(string itemName) { //vector<ItemToPurchase>::iterator it; int check = 0; //for (it = item.begin() ; it != item.end(); ++it) for(int i=0;i<item.size();i++) { if(item.at(i).GetName() == itemName) { cout<<"found...removing "<< item.at(i).GetName() << endl; item.erase(item.begin()+i); check = 1; break; } } if(check == 0) { cout<<"Shopping cart is empty."<<endl; cout<<"No item found with name "<<itemName<<endl; } } void ShoppingCart::update(ItemToPurchase &updateItem) { ///vector<ItemToPurchase>::iterator it; int i=0; //for (it = item.begin() ; it != item.end(); ++it) for(i=0;i<item.size();i++) { if(item.at(i).GetName() == updateItem.GetName()) { item.at(i).SetName(updateItem.GetName()); item.at(i).SetDescription(updateItem.GetDescription()); item.at(i).SetPrice(updateItem.GetPrice()); item.at(i).SetQuantity(updateItem.GetQuantity()); break; } } if(i == 0) { cout<<"Shopping cart is empty."<<endl; cout<<"No itemfound with name "<<updateItem.GetName()<<endl; } } ShoppingCart::~ShoppingCart() { } void ShoppingCart::showDescription() { int j=0; cout << "OUTPUT ITEMS'S DESCRIPTIONS" << endl; cout<<""<<name<<"'s Shopping Cart - "<<date<<endl; //for (it = item.begin() ; it != item.end(); ++it) for(j=0;j<item.size();j++) { cout << item.at(j).GetName() << ": " << item.at(j).GetDescription()<< endl; } if(j == 0) cout<<"Shopping cart is empty."<<endl; } void ShoppingCart::showCart() { //vector<ItemToPurchase>::iterator it; int i = 0; double tot = 0; cout<<""<<name<<"'s Shopping Cart - "<<date<<endl; //for (it = item.begin() ; it != item.end(); ++it) for(i=0;i<item.size();i++) { cout << item.at(i).GetName() << " " << item.at(i).GetQuantity()    << " @ $" << item.at(i).GetPrice() << " = $"       << item.at(i).GetPrice() * item.at(i).GetQuantity() << endl; tot = tot + (item.at(i).GetPrice() * item.at(i).GetQuantity()); } if(i == 0) { cout<<"Shopping cart is empty."<<endl; } cout<<"Total: $"<<tot<<endl; } void ShoppingCart::showOption() { 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; }

Main.cpp

#include <iostream> #include<iomanip> #include "ItemToPurchase.h" #include "ShoppingCart.h" using namespace std; int main() { ItemToPurchase item; string name, desc; double price; int q; string custName,date; string option = ""; cout<<"Enter Customer's Name: "; getline(cin, custName); cout<<"Enter Today's Date: "; getline(cin, date); cout << endl; cout << "Customer's name: " << custName << endl; cout << "Today's date: " << date << endl << endl; ShoppingCart sCart(name, date); sCart.setName(custName); sCart.setDate(date); sCart.showOption(); while(option.compare("q") != 0 ) { cout<<"Choose an option: "; getline(cin, option); if(option.compare("a") == 0) { cout << "Enter the item name: "; getline(cin, name); cout << "Enter the item description: "; getline(cin, desc); cout << "Enter the item price: "; cin >> price; cout << "Enter the item quantity: "; cin >> q; item.SetName(name); item.SetDescription(desc); item.SetPrice(price); item.SetQuantity(q); sCart.add(item); item.clean(); cin.ignore(); } else if(option.compare("d") == 0) { cout << "Enter the item name: "; getline(cin, name); sCart.remove(name); } else if(option.compare("c") == 0) { cout << "Enter the item name: "; getline(cin, name); cout << "Enter the item quantity: "; cin >> q; item.SetName(name); item.SetQuantity(q); sCart.update(item); item.clean(); cin.ignore(); } else if(option.compare("i") == 0) sCart.showDescription(); else if(option.compare("o") == 0) sCart.showCart(); else {    if(option != "q")    cout << "Error! Invalid Option entered." << endl; } cout << endl; } cout<<"Program Terminated..."; return 0; }

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