Is Java Swing or JavaFX better?

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If you in 2020 (or later) want to learn one of the above Java GUI Frameworks, I highly recommend you go with JavaFX . Swing is still a good GUI framework, but it’s being left behind (due to newer advancements). JavaFX on the other hand likely has a long life span ahead of it before it gets replaced by anything.

From a Java developer perspective, both technologies are highly useful in writing pluggable UI components. With its vast UI component library, Swing can provide added advantage to the developer, whereas when it comes to design modern and rich internet application, JavaFX can supersede Swing .

In short, Swing and JavaFX are both GUI toolkits for Java programs . Swing is the old standard toolkit that features a bigger library of GUI elements and mature IDE support. JavaFX is the newer standard with a smaller library, more consistent updates, and consistent MVC support.

It is a part of the JFC( Java Foundation Classes). It is build on top of the AWT API and entirely written in java. It is platform independent unlike AWT and has lightweight components. It becomes easier to build applications since we already have GUI components like button, checkbox etc.

Absolutely yes . Legacy swing applications are still supported and enhanced. There is no alternative for that.