Package Summary Overview Summary

### class:Observer [NONE]
-                                                                                     @Deprecated(since="9")
      public interface Observer
Deprecated. This interface has been deprecated. See the `Observable` class for further information. A class can implement the `Observer` interface when it wants to be informed of changes in observable objects. Since: 1.0 See Also: `Observable`

### method:update(java.util.Observable,java.lang.Object) [NONE]
- #### update
                                                                                                      void update​(Observable o,
                  Object arg)
Deprecated. 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. `arg` - an argument passed to the `notifyObservers` method.