using System;

​

public class Program

{

    public static void Main()

    {

        int TotalCost = 0;

        Console.WriteLine("Hello and welcome to the nr. 1 Coffeeplace in the digital world.");

            Console.WriteLine("Please place your coffeesize-order. Enter 1,2 or 3 for 1 - Small, 2 - Medium, 3 - Large.");

        //De twee onderstaande regels zijn input van Jaap op mijn verzoek.

        int result = 0;

        Int32.TryParse(Console.ReadLine(), out result);

        switch (result)

        {

            case 1:

                TotalCost += 1;

                break;

            case 2:

                TotalCost += 2;

                break;

            case 3:

                TotalCost += 3;

                break;

            default:

                Console.WriteLine("Your input was invalid. Please enter 1, 2 or 3.");

                break;

        }

​

            Console.WriteLine("Do you want to order another coffee? - Yes or No?");

        string Decision = Console.ReadLine();

        switch (Decision.ToUpper())

        {

            case "YES":

                break;

            case "NO":

                break;

            default:

                Console.WriteLine("Your input was invalid. Please enter Yes or No.");

                break;

        }

​

            Console.WriteLine("Bill amount is {0} dollars. How would you like to pay? Please enter Cash or Card.", TotalCost);

        string Payment = Console.ReadLine();

        switch (Payment.ToUpper())

        {

            case "CASH":

                Console.WriteLine("Thank you very much. Here is your change. Have a nice day!");

                break;

            case "CARD":

                Console.WriteLine("Thank you. Come again!");

                break;

            default:

                Console.WriteLine("Your input was invalid. Please enter Cash or Card.");

                break;

        }

    }

}