JavaFX Application Icon
java, javafx, javafx-2, javafx-8, stage
Solution
Assuming your stage is "stage" and the file is on the filesystem:
stage.getIcons().add(new Image("file:icon.png"));
As per the comment below, if it's wrapped in a containing jar you'll need to use the following approach instead:
stage.getIcons().add(new Image(<yourclassname>.class.getResourceAsStream("icon.png")));
Problem
Is it possible to change the application icon using JavaFX, or does it have to be done using Swing?