// Returns price of cars at this location public int queryCarsPrice(int id, String location) throws RemoteException { return queryPrice(id, Car.getKey(location)); }
// Adds car reservation to this customer. public boolean reserveCar(int id, int customerID, String location) throws RemoteException { return reserveItem(id, customerID, Car.getKey(location), location); }
// Delete cars from a location public boolean deleteCars(int id, String location) throws RemoteException { return deleteItem(id, Car.getKey(location)); }