private void displayLicneseNumberListOfAllCarsInGarage() { Console.WriteLine("Would you like to see specific status of cars? choose from options below:"); Console.WriteLine(@"1. In repair 2. Fixed and unpaid 3. Fixed and paid 4. All"); try { string answer = UIValidation.ValidateChoiceNumberInRange(1, 4, Console.ReadLine()); string licenseNumbertoDisplay = r_Garage.FilterLicneseNumberByGarageStatus(answer); if (licenseNumbertoDisplay.Equals(string.Empty) && answer.Equals("4")) { Console.WriteLine("No Cars in the garage at the moment!"); } else if (licenseNumbertoDisplay.Equals(string.Empty)) { Console.WriteLine("No Cars with this status in the garage at the moment!"); } else { Console.WriteLine(licenseNumbertoDisplay); } } catch (ArgumentException exception) { Console.WriteLine(exception.Message); } Console.ReadLine(); }