private static void fuelGasolineVehicle() { string licensePlateNumber = Utils.GetLicensePlateNumber(); string gasolineType = GetGasolineType(); string gasolineAmountString = Utils.GetGasolineAmountToAdd(); float gasolineAmount; if (!float.TryParse(gasolineAmountString, out gasolineAmount)) { throw new FormatException("Expected a float type value for Gasoline amount."); } m_Garage.FuelGasolineVehicle(licensePlateNumber, gasolineType, gasolineAmount); Console.WriteLine("The Vehicle's Gasoline Tank was successfully added with {0} Liters.", gasolineAmount); }