Observer (central-repository 4.0.0-RC API)

```
public interface Observer
```
An observer is notified when the object it observes is changed.

See Also:

Observable, SimpleObservable

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void update()
  This method is called whenever the observed object is changed.

- Method Detail
  - update
```
void update()
```
    This method is called whenever the observed object is changed.
    
    See Also:
    
    Observable.notifyObservers(), SimpleObservable.notifyObserver()