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.