JF-ExcBasic07. Vending Machine

import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String input = scanner.nextLine();
        double sumCoins = 0;
        while(!input.equals("Start")){
            double coins = Double.parseDouble(input);
            if (coins ==0.1 || coins == 0.2 || coins == 0.5 || coins == 1 || coins== 2){
            sumCoins +=coins;
            }else{
                System.out.printf("Cannot accept %.2f%n",coins);
            }
           input=scanner.nextLine();
        }
        input = scanner.nextLine();
        while (!input.equals("End")){
            switch (input){
                case"Nuts":
               if (sumCoins >=2){
                   sumCoins -=2;
                   System.out.println("Purchased Nuts");
               }else{
                   System.out.println("Sorry, not enough money");
               }
                break;
                case"Water":
                    if (sumCoins >=0.7){
                        sumCoins -=0.7;
                        System.out.println("Purchased Water");
                    }else{
                        System.out.println("Sorry, not enough money");
                    }
                    break;
                case"Crisps":
                    if (sumCoins >=1.5){
                        sumCoins -=1.5;
                        System.out.println("Purchased Crisps");
                    }else{
                        System.out.println("Sorry, not enough money");
                    }
                    break;
                case"Soda":
                    if (sumCoins >=0.8){
                        sumCoins -=0.8;
                        System.out.println("Purchased Soda");
                    }else{
                        System.out.println("Sorry, not enough money");
                    }
                    break;
                case"Coke":
                    if (sumCoins >=1.0){
                        sumCoins -=1.0;
                        System.out.println("Purchased Coke");
                    }else{
                        System.out.println("Sorry, not enough money");
                    }
                    break;
                default:
                    System.out.println("Invalid product");
                    break;
            }
            input=scanner.nextLine();
        }
        System.out.printf("Change: %.2f",sumCoins);
    }
}