From Rosetta Code
This is an example of a library. You may see a list of other libraries used on Rosetta Code at Category:Solutions by Library.
JavaFX is a toolkit. It provides a system for creation and management of graphical user interface elements.
JavaFX is a GUI framework for Java developed by Oracle to replace Swing as the standard UI library for Java SE. It is part of Oracles Java SE distribution since version 8.