How can I create a “modern looking” Java desktop application?

Question

Similar questions to this are asked periodically, but many of these answers are outdated.

I need to build a cross-platform desktop application in Java with a GUI of comp

Answer 1

Swing is good (stable, documented, supported until 2026). The problem is that it relies on the LookAndFeel system that provide a very limited number of boilerplate choices. It should be easy to change the appearance of each component individually and then unleash its creativity. Unfortunately it is painful. IMHO frameworks should be built on top of Swing to make it possible instead of creating JavaFX.

Take a look at https://github.com/dotxyteam/ReflectionUI.

Ex GUI: http://javacollection.net/reflectionui/wp-content/uploads/2017/08/general.png