public interface Observer
| 限定符和类型 | 方法和说明 |
|---|---|
void |
update(Observable o)
This method is called whenever the observed object is changed.
|
void update(Observable o)
Observable
object's notifyObservers method to have all the object's observers notified of the change.o - the observable object.Copyright © 2018–2021 Alibaba Group. All rights reserved.