| java.util.Observer
| Observer | | public interface Observer (Code) | | A class can implement the Observer interface when it
wants to be informed of changes in observable objects.
author:
Chris Warth
version:
1.16, 02/02/00
See Also: java.util.Observable
since:
JDK1.0 |
| Method Summary | |
| void | update(Observable o, Object arg)
This method is called whenever the observed object is changed. |
| update | | void update(Observable o, Object arg)(Code) | | This method is called whenever the observed object is changed. An
application calls an Observable object's
notifyObservers method to have all the object's
observers notified of the change.
Parameters:
o - the observable object.
Parameters:
arg - an argument passed to the notifyObserversmethod. |
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