Untitled

public static void Welcome()
        {
            bool runProgram = true;

            while (runProgram)
            {
                MakeLine();
                Console.WriteLine("Welcome to the Bank Interface, please Select What you want to do:");
                Console.WriteLine("1 - View Balance");
                Console.WriteLine("2 - Withdraw");
                Console.WriteLine("3 - Deposit");
                Console.WriteLine("0 - Quit");

                var a = Console.ReadLine();
                //var a = "2";

                switch (a)
                {
                    case "0":
                        Console.WriteLine("thanks for using the bank, Have a nice day");
                        runProgram = false;
                        break;

                    case "1":
                        ViewBalance();
                        break;

                    case "2":
                        Console.WriteLine("Input Withdraw amount: ");
                        decimal withd = Convert.ToDecimal(Console.ReadLine());
                        Withdraw(withd);
                        break;

                    case "3":
                        Console.WriteLine("Input Deposit Amount: ");
                        decimal depo = Convert.ToDecimal(Console.ReadLine());
                        Deposit(depo);
                        break;

                    
                }
            }



            
        }