Observer (MIPAV API Documentation)

```
public interface Observer
```
An interface for the Observer pattern.

Version:

1.0 05/11/06

Author:

Hailong Wang

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`update(Observable o, java.lang.Object arg)`	This method was called whenever the observed object is changed.

- Method Detail
  - update
```
void update(Observable o,
            java.lang.Object arg)
```
    This method was called whenever the observed object is changed.
    
    Parameters:
    
    o - the observerd object.
    
    arg - an argument passed by the notifyObservers method.