static void Main(string[] args) { int result = 0; while (true) { Console.WriteLine(); PrintString("Please enter a number: "); var number = Utility.AcceptNumberInput(); //Int32.Parse(Console.ReadLine()); result += number; PrintString("Enter 0 to Quit."); var input = Utility.AcceptNumberInput(); //Int32.Parse(Console.ReadLine()); if (input == 0) { break; } } PrintString("Total Is: " + result, true); PrintString("Bye Bye !", true); }