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JavaTM 2 Platform Standard Ed. 5.0 |
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public interface Observer
A class can implement the Observer interface when it
wants to be informed of changes in observable objects.
Observable| Method Summary | |
|---|---|
void |
update(Observable o,
Object arg)
This method is called whenever the observed object is changed. |
| Method Detail |
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void update(Observable o,
Object arg)
notifyObservers method to have all the object's
observers notified of the change.
o - the observable object.arg - an argument passed to the notifyObservers
method.
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Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.