Java Swing. Swing is one of Java's most enduring desktop UI frameworks, and it continues to power high-quality applications across platforms. A prime example is the popular IntelliJ IDEA Java IDE, ...

To set the frame’s icon, you simply pass the setIconImage() method an image. (By the way, Swing’s JFrame works the same way, since it directly extends java.awt.Frame.) ...

With the release of JavaFX 2.0 the question for many Java developers is whether it’s time to start transitioning Swing applications to this new UI paradigm, ... JPad.java and icon.png.