Add a GUI with pretty UI

[jessewriter]

A front end using Java AWT, Swift or JavaFX or within a web browser. There is debate to the best UI tool, investigate.

[jessewriter]

https://www.reddit.com/r/java/comments/383e2c/whats_the_actual_modern_way_to_make_a_gui_with/?st=iu1h7wgl&sh=619945e1

this article recommends JavaFX as the latest Java GUI library and so this is what I will use.