Uses of Interface
java.util.Observer

Packages that use Observer

Package	Description
java.util	Contains the collections framework, some internationalization support classes, a service loader, properties, random number generation, string parsing and scanning classes, base64 encoding and decoding, a bit array, and several miscellaneous utility classes.

Uses of Observer in java.util

Methods in java.util with parameters of type Observer

Modifier and Type	Method	Description
void	Observable.addObserver(Observer o)	Deprecated. 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)	Deprecated. Deletes an observer from the set of observers of this object.