Uses of Interface
javafx.collections.ObservableSet

Packages that use ObservableSet 
Package Description
javafx.beans.binding
Provides classes that create and operate on a Binding that calculates a value that depends on one or more sources.
javafx.beans.property
The package javafx.beans.property defines read-only properties and writable properties, plus a number of implementations.
javafx.beans.value
The package javafx.beans.value contains the two fundamental interfaces ObservableValue and WritableValue and all of its sub-interfaces.
javafx.collections
Contains the essential JavaFX collections and collection utilities
javafx.css
Provides API for making properties styleable via CSS and for supporting pseudo-class state.
javafx.print
Provides the public classes for the JavaFX Printing API.
javafx.scene
Provides the core set of base classes for the JavaFX Scene Graph API.
javafx.scene.control
The JavaFX User Interface Controls (UI Controls or just Controls) are specialized Nodes in the JavaFX Scenegraph especially suited for reuse in many different application contexts.