@Deprecated(since="9") public interface Observer
This interface has been deprecated. See the
Observableclass for further information.
A class can implement the
Observerinterface when it wants to be informed of changes in observable objects.
- See Also:
updateDeprecated.This method is called whenever the observed object is changed. An application calls an
notifyObserversmethod to have all the object's observers notified of the change.
o- the observable object.
arg- an argument passed to the