public bool Customer_Create(string name, int id, int pin) { if (!bank.BOOL_CustomerIdAvailable(id)) { Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("\nError: That ID is already in use."); Thread.Sleep(1500); return(false); } if (pin.ToString().Length != 4) { Console.ForegroundColor = ConsoleColor.Red; Console.WriteLine("\nError: Pin must be 4 digits long."); Thread.Sleep(1500); return(false); } return(bank.CreateCustomer(name, id, pin)); }