This code is for JAVA please help me

Online shopping cart (continued) (Java)

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

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

Private fields

string itemDescription - Initialized in default constructor to "none"

Parameterized constructor to assign item name, item description, item price, and item quantity (default values of 0). (1 pt)

Public member methods

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

Ex. of printItemCost() output:

Bottled Water 10 @ $1 = $10 

Ex. of printItemDescription() output:

Bottled Water: Deer Park, 12 oz. 

(2) Create two new files:

ShoppingCart.java - Class definition

ShoppingCartManager.java - Contains main() method

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

Private fields

String customerName - Initialized in default constructor to "none"

String currentDate - Initialized in default constructor to "January 1, 2016"

ArrayList cartItems

Default constructor

Parameterized constructor which takes the customer name and date as parameters (1 pt)

Public member methods

getCustomerName() accessor (1 pt)

getDate() accessor (1 pt)

addItem()

Adds an item to cartItems array. Has parameter ItemToPurchase. Does not return anything.

removeItem()

Removes item from cartItems array. 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() method. 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 method.

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() method. 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() method. (5 pts) Ex:

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

Here is my code so far I am not sure what I'm doing wrong please help:

ItemToPurchase

public class ItemToPurchase{ private String itemName ; private int itemPrice; private int itemQuantity; private String itemDescription; public ItemToPurchase(){ itemName = "none"; itemPrice = 0; itemQuantity = 0; itemDescription = "none"; } public String getName() { return itemName; } public void setName(String itemName) { this.itemName = itemName; } public int getPrice() { return itemPrice; } public void setPrice(int itemPrice) { this.itemPrice = itemPrice; } public int getQuantity() { return itemQuantity; } public String getDescription(){ return itemDescription; } public void setQuantity(int itemQuantity) { this.itemQuantity = itemQuantity; } public void setDescription(String itemDescription){ this.itemDescription = itemDescription; } public void printItemCost(){ int quantity = (getPrice() * getQuantity()); System.out.println(getName() + " " + getQuantity() + "@ $ " + getPrice() + "= $" + quantity); } public void printItemDescription(){ System.out.println(getName() + ":" + getDescription()); return; } }

ShoppingCart:

import java.util.ArrayList; import java.util.Scanner;

public class ShoppingCart { private String customerName; private String currentDate; private ArrayList cartItems = new ArrayList<>(); public ShoppingCart(){ this.customerName = "none"; this.currentDate = "January 1, 2016"; }

public ShoppingCart(String customerName, String currentDate){ this.customerName = customerName; this.currentDate = currentDate; }

public void setCustomerName(String customerName){ this.customerName = customerName; } public String getCustomerName(){ return customerName; } public void setDate(String currentDate){ this.currentDate = currentDate; } public String getDate(){ return currentDate; }

public void addItem(ItemToPurchase Item){ cartItems.add(Item); }

public void removeItem(String itemName){ int i = 0; int remve = 0; for(i = 0; i < cartItems.size(); i++){ if(cartItems.get(i).getName().equals(itemName)){ cartItems.remove(i); }else { System.out.print("Item not found in cart. Nothing removed."); } } }

public void modifyItem(ItemToPurchase item) { int i = 0; while (!cartItems.isEmpty()) { for (i = 0; i < cartItems.size(); i++) { if (cartItems.get(i).getName().equals(item.getName())) { if (cartItems.get(i).getName().equals("none")) { cartItems.get(i).setName(item.getName()); cartItems.get(i).setPrice(item.getPrice()); cartItems.get(i).setQuantity(item.getQuantity()); } } else { System.out.println("Item not found in cart. Nothing modified."); } } } } public int getNumItemsinCart(){ return cartItems.size(); } public int getCostofCart(){ int total = 0; int i = 0; for (i = 0; i < cartItems.size(); i++){ total = cartItems.get(i).getQuantity(); } return total; } public void printTotal() { if (cartItems.isEmpty()) { for (ItemToPurchase item : cartItems) { System.out.println(item); } } else { System.out.println("SHOPPING CART IS EMPTY"); } } public void printDescriptions() { if (!cartItems.isEmpty()) { for (int i = 0; i < cartItems.size(); i++) { System.out.println(customerName + "'s Shopping Cart -"+ currentDate); System.out.println(" Item Descriptions"); for (ItemToPurchase item : cartItems) { item.printItemDescription(); } } } }

}

ShoppingCartManager:

import java.util.ArrayList; import java.util.Scanner; public class ShoppingCartManager { public static void main(String[] args){ String customerName; String currentDate; Scanner scnr = new Scanner(System.in); System.out.println("Enter Customer's Name:"); customerName = scnr.nextLine().toString().trim(); System.out.println(); System.out.println("Enter Today's Date:"); currentDate = scnr.nextLine().toString().trim(); System.out.println(); ShoppingCart cart = new ShoppingCart(customerName, currentDate); System.out.println("Customer Name: "+cart.getCustomerName()); System.out.println("Today's Date: "+cart.getDate()); printMenu(cart); } public static void printMenu (ShoppingCart cart){ Scanner scnr = new Scanner(System.in); char input = 'n'; System.out.println("MENU:"); System.out.println("a - Add Item To Cart"); System.out.println("d - Remove Item from Cart"); System.out.println("c - Change Item Quantity"); System.out.println("i - Output Items' Description"); System.out.println("o - Output Shopping Cart"); System.out.println("q - Quit"); System.out.println("Enter an option:"); input = scnr.nextLine().trim().charAt(0); ItemToPurchase item = null;

String itemName = "none"; String itemDescription = "none"; int itemPrice = 0; int itemQuantity = 0; while(input != 'q'){ if (input != 'a' && input != 'd' && input != 'c' && input != 'i' && input != 'o'){ System.out.print("Enter an Option:"); input = scnr.nextLine().trim().charAt(0); return; }else{ switch (input){ case 'o':{ System.out.println("OUTPUT SHOPPING CART"); cart.printTotal(); break; } case 'i':{ System.out.println("OUTPUT ITEMS' DESCRIPTIONS"); cart.printDescriptions(); break; } case 'a':{ //String name, desc; //int price, qty; System.out.println("ADD ITEM TO CART"); System.out.println("Enter Item name:"); itemName = scnr.nextLine().trim().toString(); System.out.println("Enter Item description:"); itemDescription = scnr.nextLine().trim().toString(); System.out.println("Enter Item price:"); itemPrice = scnr.nextInt(); scnr.nextLine(); System.out.println("Enter Item quantity:"); itemQuantity = scnr.nextInt(); scnr.nextLine(); item = new ItemToPurchase(itemName,itemDescription,itemPrice,itemQuantity); cart.addItem(item); printMenu(cart); break; } case 'd':{ String Remove; System.out.println("REMOVE ITEM FROM CART"); System.out.println("Enter name of item to remove:"); Remove = scnr.nextLine().trim().toString(); cart.removeItem(Remove); break; } case 'c':{ System.out.println("CHANGE ITEM QUANTITY"); System.out.println("Enter item name:"); itemName = scnr.nextLine().trim().toString(); System.out.println("Enter the new quantity:"); itemQuantity = scnr.nextInt(); scnr.nextLine(); item = new ItemToPurchase(itemName, "none", itemQuantity, 0); cart.modifyItem(item); break; } } System.out.print("Enter an option:"); input = scnr.nextLine().trim().charAt(0); } } } }