Interface java.util.Observer
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Interface java.util.Observer
- public interface Observer
- extends Object
When implemented, this interface allows all classes
to be observable by instances of class Observer.
-
update(Observable, Object)
- This is called if observers in the observable list need to be
updated.
update
public abstract void update(Observable o,
Object arg)
- This is called if observers in the observable list need to be
updated.
- Parameters:
- o - the list of observers
- arg - the argument being notified
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