public CarManager(ICarDal carDal, IParkHistoryDal parkHistoryDal, IPriceDal priceDal, ICustomerDal customerDal)
{
_carDal = carDal;
_parkHistoryDal = parkHistoryDal;
_customerDal = customerDal;
_priceDal = priceDal;
}
public ParkHistoryManager(IParkHistoryDal parkHistorydal)
{
_parkHistoryDal = parkHistorydal;
}