java.util.Observer |
A class can implement the Observer
interface when it
wants to be informed of changes in observable objects.
Public Methods | |||||||||||
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This method is called whenever the observed object is changed.
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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.
o | the observable object. |
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arg | an argument passed to the notifyObservers
method.
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