Package | Description |
---|---|
java.util |
Contains the collections framework, legacy collection classes, event model,
date and time facilities, internationalization, and miscellaneous utility
classes (a string tokenizer, a random-number generator, and a bit array).
|
Modifier and Type | Method | Description |
---|---|---|
void |
Observable.addObserver (Observer o)
Adds an observer to the set of observers for this object, provided
that it is not the same as some observer already in the set.
|
|
void |
Observable.deleteObserver (Observer o)
Deletes an observer from the set of observers of this object.
|
Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2025, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.
Scripting on this page tracks web page traffic, but does not change the content in any way.