Question

I need a shoppingcartmanager.java that contains a main method for this code in java

Itemtopurchase.java

public class ItemToPurchase {
   // instance variables
   private String itemName;
   private String itemDescription;
   private int itemPrice;
   private int itemQuantity;
   // default constructor
   public ItemToPurchase() {
       this.itemName = "none";
       this.itemDescription = "none";
       this.itemPrice = 0;
       this.itemQuantity = 0;
   }
   public ItemToPurchase(String itemName, int itemPrice, int itemQuantity,String itemDescription) {
       this.itemName = itemName;
       this.itemDescription = itemDescription;
       this.itemPrice = itemPrice;
       this.itemQuantity = itemQuantity;
   }
   // method to set name of the item
   public void setName(String name) {
       itemName = name;
   }
   // method to set price of the item
   public void setPrice(int price) {
       itemPrice = price;
   }
   // method to set quantity of the item
   public void setQuantity(int quantity) {
       itemQuantity = quantity;
   }
   public void setDescription(String description) {
       itemDescription = description;
   }
   // method to get name of the item
   public String getName() {
       return itemName;
   }
   // method to get price of the item
   public int getPrice() {
       return itemPrice;
   }
   // method to get quantity of the item
   public int getQuantity() {
       return itemQuantity;
   }
   public String getDescription() {
       return itemDescription;
   }
   public void printItemPurchase() {
       System.out.println(itemName + " " + itemQuantity + " @ $" + itemPrice + " = $" + (itemPrice * itemQuantity));
   }
   public void printItemDescription() {

       System.out.println(itemName+": "+itemDescription);
   }
}

*******************

shoppingcart.java

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

public class ShoppingCart {
   private String customerName;
   private String currentDate;
   private List<ItemToPurchase> cartItems=new ArrayList<>();
   ShoppingCart() {
       customerName = "none";
       currentDate = "January 1, 2016";
   }
   ShoppingCart(String customerName, String currentDate) {
       super();
       this.customerName = customerName;
       this.currentDate = currentDate;
   }
   public String getCustomerName() {
       return customerName;
   }
   public String getDate() {
       return currentDate;
   }
   public void addItem(ItemToPurchase item) {
       cartItems.add(item);
   }
   public void removeItem(String itemName) {
       boolean check = false;
       for (ItemToPurchase item : cartItems) {
           if(item.getName().equalsIgnoreCase(itemName)) {
               cartItems.remove(item);
               check=true;
           }
       }
       if(!check)
           System.out.println("Item not found in cart. Nothing removed.");
   }
   public void modifyItem(ItemToPurchase item) {
       boolean check = false;
       for (ItemToPurchase itemToPurchase : cartItems) {
           if(itemToPurchase.getName().equalsIgnoreCase(item.getName())) {
               cartItems.remove(itemToPurchase);
               cartItems.add(item);
               check=true;
           }
       }
       if(!check)
           System.out.println("Item not found in cart. Nothing modified.");
   }
   public int getNumItemsInCart() {
       int total=0;
       for (ItemToPurchase item : cartItems) {
           total+=item.getQuantity();
       }
       return total;
   }
   public int getCostOfCart() {
       int cost=0;
       for (ItemToPurchase item : cartItems) {
           cost+=item.getPrice()*item.getQuantity();
       }
       return cost;
   }
   public void printTotal() {
       System.out.println(customerName+"'s Shopping Cart - "+currentDate);
       System.out.println("Number of Items: "+getNumItemsInCart());
       System.out.println();
       for (ItemToPurchase item : cartItems) {
           System.out.println(item.getName()+" "+item.getQuantity()+" @ $"+item.getPrice()+" = $"+(item.getQuantity()*item.getPrice()));
       }
       System.out.println();
       System.out.println("Total: $"+getCostOfCart());
   }
   public void printDesciptions() {
       System.out.println(customerName+"'s Shopping Cart - "+currentDate);
       System.out.println();
       System.out.println("Item Descriptions");
       for (ItemToPurchase item : cartItems)
           System.out.println(item.getName()+": "+item.getDescription());
   }
   public static void main(String[] args) {
       Scanner sc=new Scanner(System.in);
       System.out.println("Enter Customer's Name:");
       String name=sc.nextLine();
       System.out.println("Enter Today's Date:");
       String date=sc.nextLine();
       ShoppingCart cart=new ShoppingCart(name,date);
       System.out.println();
       System.out.println();
   }
}

Answer 1

ItemToPurchase.java

public class ItemToPurchase {
private String itemName;
private String itemDescription;
private int itemPrice;
private int itemQuantity;
  
public ItemToPurchase()
{
this.itemName = "none";
this.itemDescription = "none";
this.itemPrice = 0;
this.itemQuantity = 0;
}
  
public ItemToPurchase(String itemName, int itemPrice, int itemQuantity, String itemDescription)
{
this.itemName = itemName;
this.itemDescription = itemDescription;
this.itemPrice = itemPrice;
this.itemQuantity = itemQuantity;
}
  
public void setName(String name) {
itemName = name;
}
  
public void setPrice(int price) {
itemPrice = price;
}
  
public void setQuantity(int quantity) {
itemQuantity = quantity;
}
  
public void setDescription(String description) {
itemDescription = description;
}
  
public String getName() {
return itemName;
}
  
public int getPrice() {
return itemPrice;
}
  
public int getQuantity() {
return itemQuantity;
}

public String getDescription() {
return itemDescription;
}

public void printItemPurchase() {
System.out.println(itemName + " " + itemQuantity + " @ $" + itemPrice + " = $" + (itemPrice * itemQuantity));
}

public void printItemDescription() {

System.out.println(itemName + ": " + itemDescription);
}
}

ShoppingCart.java

import java.util.ArrayList;
import java.util.List;

public class ShoppingCart {

private String customerName;
private String currentDate;
private List<ItemToPurchase> cartItems = new ArrayList<>();

ShoppingCart() {
customerName = "none";
currentDate = "January 1, 2016";
}

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

public String getCustomerName() {
return customerName;
}

public String getDate() {
return currentDate;
}

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

public List<ItemToPurchase> getCartItems() {
return cartItems;
}

public void removeItem(String itemName) {
boolean check = false;
for (ItemToPurchase item : cartItems) {
if (item.getName().equalsIgnoreCase(itemName)) {
cartItems.remove(item);
check = true;
break;
}
}
if (!check) {
System.out.println("Item not found in cart. Nothing removed.");
}
}

public void modifyItem(ItemToPurchase item) {
boolean check = false;
for (ItemToPurchase itemToPurchase : cartItems) {
if (itemToPurchase.getName().equalsIgnoreCase(item.getName())) {
cartItems.remove(itemToPurchase);
cartItems.add(item);
check = true;
break;
}
}
if (!check) {
System.out.println("Item not found in cart. Nothing modified.");
}
}

public int getNumItemsInCart() {
int total = 0;
for (ItemToPurchase item : cartItems) {
total += item.getQuantity();
}
return total;
}

public int getCostOfCart() {
int cost = 0;
for (ItemToPurchase item : cartItems) {
cost += item.getPrice() * item.getQuantity();
}
return cost;
}

public void printTotal() {
System.out.println(customerName + "'s Shopping Cart - " + currentDate);
System.out.println("Number of Items: " + getNumItemsInCart());
System.out.println();
for (ItemToPurchase item : cartItems) {
System.out.println(item.getName() + " " + item.getQuantity() + " @ $" + item.getPrice() + " = $" + (item.getQuantity() * item.getPrice()));
}
System.out.println();
System.out.println("Total: $" + getCostOfCart());
}

public void printDescriptions() {
System.out.println(customerName + "'s Shopping Cart - " + currentDate);
System.out.println();
System.out.println("Item Descriptions");
for (ItemToPurchase item : cartItems) {
System.out.println(item.getName() + ": " + item.getDescription());
}
}
}

ShoppingCartMain.java (Main class)

import java.util.Scanner;

public class ShoppingCartMain {
  
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
System.out.print("Enter Customer's Name: ");
String name = sc.nextLine();
System.out.print("Enter Today's Date: ");
String date = sc.nextLine();
ShoppingCart cart = new ShoppingCart(name,date);
System.out.println();
  
int choice;
do
{
displayMenu();
choice = Integer.parseInt(sc.nextLine().trim());
switch(choice)
{
case 1:
{
System.out.print("\nEnter item name: ");
String itemName = sc.nextLine().trim();
System.out.print("Enter item price: $");
int price = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter item quantity: ");
int quantity = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter item description: ");
String itemDesc = sc.nextLine().trim();
  
cart.addItem(new ItemToPurchase(itemName, price, quantity, itemDesc));
break;
}
  
case 2:
{
System.out.print("\nEnter item name: ");
String itemName = sc.nextLine().trim();
System.out.print("Enter item price: $");
int price = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter item quantity: ");
int quantity = Integer.parseInt(sc.nextLine().trim());
System.out.print("Enter item description: ");
String itemDesc = sc.nextLine().trim();
  
cart.modifyItem(new ItemToPurchase(itemName, price, quantity, itemDesc));
break;
}
  
case 3:
{
System.out.print("\nEnter item name: ");
String itemName = sc.nextLine().trim();   
cart.removeItem(itemName);
break;
}
  
case 4:
{
System.out.println();
cart.printTotal();
break;
}
  
case 5:
{
System.out.println("\nThank you for shopping with us!\nGoodbye!\n");
System.exit(0);
}
  
default:
System.out.println("\nInvalid choice!\n");
}
}while(choice != 5);
}
  
private static void displayMenu()
{
System.out.print("Choose from the following:\n"
+ "1. Add an item\n"
+ "2. Modify an item\n"
+ "3. Remove an item\n"
+ "4. Display all items\n"
+ "5. Exit\n"
+ "Your choice >> ");
}
}

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