public void RemoveObserver(ICarObserver carObserver) { _cityObservators.Remove(carObserver); }
public void Detach(ICarObserver o) { observerList.Remove(o); }
public void AddObserver(ICarObserver carObserver) { _cityObservators.Add(carObserver); }
public void Attach(ICarObserver o) { observerList.Add(o); }