Answer to Question #310054 in Java | JSP | JSF for Tsundzu

Question

1.5 A retail shop have functionality to sell. The sell function must take item name, and size as a 

parameter. Removes the item from the stock and put that Item in the sold list. The sell function also 

displays the sold item details, name, size, and days before expiry date. [2]

If item is not available in the stock a message must be displayed on the screen “no stock”;

1.6 An Items class need to be created in order to implement a complete Retail Shop. All items MUST/ 

FORCED to have the getPrice() function returns price of an item , setPrice(double price), returns 

nothing, but set a price of an Item. [2]

Answer 1

import java.time.Duration;

import java.time.LocalDateTime;

import java.util.*;

public class RetailShop {

public Map<String, Item> stock = new HashMap<>();

public Map<String, Integer> sold = new HashMap<>();

public void sell(String itemName, int itemSize) {

Item itemInStock = stock.get(itemName);

if (itemInStock != null && itemInStock.getAmount() >= itemSize) {

itemInStock.setAmount(itemInStock.getAmount() - itemSize);

sold.merge(itemName, itemSize, Integer::sum);

long daysBeforeExpiry = Duration.between(LocalDateTime.now(), itemInStock.getExpiryDate()).toDays();

System.out.println("Name: " + itemName);

System.out.println("Size: " + itemSize);

System.out.println("Days before expiry date: " + daysBeforeExpiry);

} else {

System.out.println("no stock");

}

}

}

import java.time.LocalDateTime;

public class Item {

private String name;

private double price;

private int amount;

private LocalDateTime expiryDate;

public Item(String name, double price, int amount, LocalDateTime expiryDate) {

this.name = name;

this.price = price;

this.amount = amount;

this.expiryDate = expiryDate;

}

public int getAmount() {

return amount;

}

public void setAmount(int amount) {

this.amount = amount;

}

public double getPrice() {

return price;

}

public void setPrice(double price) {

this.price = price;

}

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public LocalDateTime getExpiryDate() {

return expiryDate;

}

public void setExpiryDate(LocalDateTime expiryDate) {

this.expiryDate = expiryDate;

}

}