Question

You have to write a java solution for a store.

Part 1

The solution needs to have at least following features:

◦ Item: Name, ID (incremental ID by 1 for each product), Price.

◦ Store Basket: ID (incremental ID by 1 for each basket), Net Amount, Total Amount, VAT, List of items, Date and Time of purchase, Address of the store, name of cashier.

◦ Cashier: Name, Surname, Username and Password (insert from code five fixed cashiers).

◦ Manager: Name, Surname, Username and Password (insert from code one fixed manager).

The program must:

 Present a Menu for the cashier after he has logged in with username and password.

 Menu should be available in 2 languages.

Menu:

◦ New Basket

◦ Insert item in basket

◦ Remove item from basket

◦ Print information for basket with a certain ID

◦ Apply discount to basket with 10% for Christmas promotion

◦ Exit

Extend four classes: Item, StoreBasket, Store, Cashier.

USE JAVA TO WRITE CODE

Answer 1

Answer;

import java.util.ArrayList; import java.util.Iterator; public class GroceryStore { ArrayList myItems; /* Creates an initially empty grocery store / public GroceryStore() { myItems = new ArrayList(); } /* Changes the price of the item associated with itemName / public void setPrice(String itemName, double price) { GroceryItem item = getItem(itemName); if (item != null) { ( (GItem) item).price = price; } } /* returns the item associated with itemName / public GroceryItem getItem(String itemName) { return getGItem(itemName); } /* returns a (possibly empty) ArrayList of all the items in the specified category / public ArrayList getAllItems(String category) { ArrayList list = new ArrayList(); for(int k=0; k < myItems.size(); k++) { GItem item = (GItem) myItems.get(k); if (item.getCategory().equals(category)) { list.add(item); } } return list; } /* precondition: names.length == prices.length changes the price of the item associated with names[k] to the price specified by prices[k] / public void changePrices(String[] names, double[] prices) { for(int k=0; k < names.length; k++) { setPrice(names[k],prices[k]); } } private GItem getGItem(String itemName) { Iterator it = myItems.iterator(); while (it.hasNext()) { GItem gitem = (GItem) it.next(); if (gitem.getName().equals(itemName)) { return gitem; } } return null; } private class GItem implements GroceryItem { String name; double price; String category; int size; public String getName() { return name; } public double getPrice() { return price; } public int getSize() { return size; } public String getCategory() { return category; } } }