package FundExercises2;

import java.util.Scanner;

public class VendingMachine {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();
        double money = 0;

        while (!input.equals("Start")){

            double coins = Double.parseDouble(input);
            if (coins == 0.1 || coins == 0.2 || coins == 0.5 || coins == 1 || coins == 2){
                money += coins;
            }else  {
                System.out.printf("Cannot accept %.2f%n", coins);
            }

            input = scanner.nextLine();

        }

        String product = scanner.nextLine();

        while (!product.equals("End")){

            double productPrice = 0;

            if (product.equals("Nuts")){
                productPrice = 2;
            }else if (product.equals("Water")){
                productPrice = 0.7;
            }else if (product.equals("Crisps")){
                productPrice = 1.5;
            }else if (product.equals("Soda")){
                productPrice = 0.8;
            }else if (product.equals("Coke")){
                productPrice = 1;
            }else  {
                System.out.println("Invalid product");
                product = scanner.nextLine();
            }

            if (money >= productPrice && !product.equals("End")) {
                System.out.printf("Purchased %s%n", product);
                money -= productPrice;
            }else {
                if (product.equals("End")){
                    continue;
                }else {
                    System.out.println("Sorry, not enough money");
                }
            }

            product = scanner.nextLine();
        }

        System.out.printf("Change: %.2f", money);

    }
}