public interface Observer
Observer is the interface to be implemented by objects that
receive notification of updates on an Observable object.Observable| Modifier and Type | Method and Description |
|---|---|
void |
update(Observable observable,
Object data)
This method is called if the specified
Observable object's
notifyObservers method is called (because the Observable
object has been updated. |
void update(Observable observable, Object data)
Observable object's
notifyObservers method is called (because the Observable
object has been updated.observable - the Observable object.data - the data passed to Observable.notifyObservers(Object).