vendingMachine

import java.util.Scanner;

public class vendingMachine {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        double moneySum = 0;

        boolean isTrue = true;
        while (isTrue) {
            String moneyInput = sc.nextLine();
            double inputMoney = 0;

            switch (moneyInput) {
                case "0.1":
                case "0.2":
                case "0.5":
                case "1":
                case "2":
                    inputMoney = Double.parseDouble(moneyInput);
                    moneySum += inputMoney;
                    break;
                case "Start":
                    break;
                default:
                    inputMoney = Double.parseDouble(moneyInput);
                    System.out.printf("Cannot accept %.2f",inputMoney);
                    System.out.println();
                    break;
            }

            if (moneyInput.equals("Start")) {
                boolean orderIsFinished = true;
                while (orderIsFinished) {
                    String foodInput = sc.nextLine();

                    if (foodInput.equals("End")) {
                        isTrue = false;
                        orderIsFinished = false;
                        System.out.printf("Change: %.2f", moneySum);
                    }


                    switch (foodInput) {
                        case "End":
                            break;
                        case "Nuts":
                            if (moneySum >= 2.0) {
                                moneySum -= 2.0;
                                System.out.printf("Purchased %s", foodInput);
                                System.out.println();
                            } else {
                                System.out.println("Sorry, not enough money");
                                System.out.println();
                            }
                            break;
                        case "Water":
                            if (moneySum >= 0.7) {
                                moneySum -= 0.7;
                                System.out.printf("Purchased %s", foodInput);
                                System.out.println();
                            } else {
                                System.out.println("Sorry, not enough money");
                                System.out.println();
                            }
                            break;
                        case "Crisps":
                            if (moneySum >= 1.5) {
                                moneySum -= 1.5;
                                System.out.printf("Purchased %s", foodInput);
                                System.out.println();
                            } else {
                                System.out.println("Sorry, not enough money");
                                System.out.println();
                            }
                            break;
                        case "Soda":
                            if (moneySum >= 0.8) {
                                moneySum -= 0.8;
                                System.out.printf("Purchased %s", foodInput);
                                System.out.println();
                            } else {
                                System.out.println("Sorry, not enough money");
                                System.out.println();
                            }
                            break;
                        case "Coke":
                            if (moneySum >= 1.0) {
                                moneySum -= 1.0;
                                System.out.printf("Purchased %s", foodInput);
                                System.out.println();
                            } else {
                                System.out.println("Sorry, not enough money");
                                System.out.println();
                            }
                            break;
                        default:
                            System.out.println("Invalid product");
                            System.out.println();
                            break;
                    }
                }
            }
        }
    }
}