98 lines
2.7 KiB
Java
98 lines
2.7 KiB
Java
import java.util.*;
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class Warehouse {
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String productId;
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int quantity;
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int unitCost;
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Warehouse(String productId, int quantity, int unitCost) {
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this.productId = productId;
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this.quantity = quantity;
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this.unitCost = unitCost;
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}
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}
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class Order {
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int orderedQuantity;
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int orderId;
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String date;
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Order(int orderedQuantity, int orderId, String date) {
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this.orderedQuantity = orderedQuantity;
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this.orderId = orderId;
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this.date = date;
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}
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}
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class BookOrderThread extends Thread {
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private Warehouse warehouse;
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private Order order;
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private static List<Order> orderList = new ArrayList<>();
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BookOrderThread(Warehouse warehouse, Order order) {
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this.warehouse = warehouse;
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this.order = order;
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}
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public void run() {
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try {
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checkAvailableQuantity();
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computeTotCost();
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orderList.add(order);
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} catch (Exception e) {
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System.out.println(e.getMessage());
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}
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}
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private void checkAvailableQuantity() throws Exception {
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if (warehouse.quantity == 0) {
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throw new Exception("Order cannot be placed");
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}
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if (order.orderedQuantity == 0) {
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throw new Exception("Order quantity is invalid");
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}
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if (order.orderedQuantity > warehouse.quantity) {
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throw new Exception("Out of Stock for " + warehouse.productId);
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}
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}
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private void computeTotCost() {
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warehouse.quantity -= order.orderedQuantity;
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int totalCost = order.orderedQuantity * warehouse.unitCost;
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System.out.println("OrderID: " + order.orderId + " Total Cost: " + totalCost);
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}
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public static void displaySortedOrders() {
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orderList.sort(Comparator.comparing(o -> o.date));
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for (Order o : orderList) {
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System.out.println("OrderID: " + o.orderId + " Date: " + o.date);
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}
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}
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}
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public class Main {
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public static void main(String[] args) {
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Warehouse warehouse = new Warehouse("P001", 50, 100);
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Order o1 = new Order(10, 101, "2023-10-01");
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Order o2 = new Order(20, 102, "2023-10-03");
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Order o3 = new Order(25, 103, "2023-10-02");
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Thread t1 = new BookOrderThread(warehouse, o1);
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Thread t2 = new BookOrderThread(warehouse, o2);
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Thread t3 = new BookOrderThread(warehouse, o3);
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t1.start();
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t2.start();
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t3.start();
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try {
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t1.join();
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t2.join();
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t3.join();
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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BookOrderThread.displaySortedOrders();
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}
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}
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