과제 #4

import java.util.Scanner;

public class Pos {

    static int cashAmount = 100000;
    String[] menu;
    int[] price;
    int[] salesQuantity;

    void showMenu(){
        for (int i = 0; i < menu.length; i++) {
            System.out.println(i + 1 + ". " + menu[i] + " : " + price[i] + "￦");
        }
        System.out.println();
    }

    void order(){
        showMenu();

        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();

        buy(a);
    }

    void buy(int a){
        try {
            cashAmount += price[a - 1];
            salesQuantity[a - 1] += 1;
            System.out.println("You ordered " + menu[a - 1]);
            System.out.println("You pay for " + price[a - 1] + "￦");
            System.out.println(menu[a -1] + " is here");
            System.out.println();
        } catch(ArrayIndexOutOfBoundsException e) {
            System.out.println("You wrong order");
            System.out.println("Please reorder");
            System.out.println();
            order();
        }
    }

    void close(){
        System.out.println("Today sale proceeds is " + cashAmount + "￦");
        System.out.println("Sales status is ");
        for (int i = 0; i < menu.length; i++) {
            System.out.println("└ " + menu[i] + " : " + salesQuantity[i]);
        }
    }

}

public class Homework4 {
    public static void main(String[] args) {

        Pos pos1 = new Pos();

        pos1.menu = new String[]{"Americano", "Latte", "MochaFrappuccino", "JavaChipFrappuccino", "ChamomileTea"};
        pos1.price = new int[]{4500, 5000, 5900, 6300, 4500};
        pos1.salesQuantity = new int[pos1.price.length];

        pos1.order();

        pos1.order();

        pos1.order();

        pos1.close();

    }
}