private void refulVehicle(string i_LicenseNumber) { if (garage.IsFuelVehicle(i_LicenseNumber)) { IO.PrintList(FuelEngine.getFuelTypes(), "choose the number of the desired fuel type:"); string fuelTypeToSet = IO.GetUserOptionChoice(FuelEngine.getFuelTypes().Count); string amountOfFuelToAdd = IO.PrintMsgAndGetValue("Please enter the amount of fuel (in liters) to refuel"); garage.Refuel(i_LicenseNumber, amountOfFuelToAdd, fuelTypeToSet); } else { IO.UnMatchingEngineMsg("fuel", i_LicenseNumber); } }