Dynamically add CSS stylesheets in JavaFX

Question

I would like to add a CSS file which is located somewhere on the filesystem. The purpose is to write an application where the user can add JavaFX CSS files (which are create

Answer 1

You can get the URL from java.io.File

File file = new File("style.css");
URL url = file.toURI().toURL();
scene.getStylesheets().add(url.toExternalForm());

or in short form

scene.getStylesheets().add((new File("style.css")).toURI().toURL().toExternalForm());