java.util
Interface Observer
java.lang.Object
|
+--java.util.Observer
public interface Observer
Interface that is implemented when a class wants to be informed of changes
in Observable objects.
Author:- Warren Levy <warrenl@cygnus.com>
See Also:
update
public void update(java.util.Observable observable, java.lang.Object arg) This method is called whenever the observable object changes, and has
called notifyObservers. The Observable object can pass
arbitrary information in the second parameter.
Parameters: