{{tag>Java JavaFX GUI Desktop Mobile}}

====== JavaFX ======

JavaFX is a GUI library for Java that can be used on desktop. The official documentation is available at [[https://openjfx.io]]. Also refer to their [[https://openjfx.io/openjfx-docs/|Getting Started with JavaFX]] guide.

===== Setup =====

You'll need a few things:

  * Java JDK 11+
  * JavaFX Modules
  * Scene Builder (Optional)

Download the JavaFX Modules from [[https://openjfx.io/]]. The ''jmods'' download is the one with the modules and the SDK contains the ''.jar'' files and dynamically linked libraries (e.g. ''.dylib''). The modules are for building runtimes with [[:jlink]] and the library files are used for compiling. Optionally, also download the Scene Builder from [[https://gluonhq.com/products/scene-builder/]] which is a visual GUI designer to generate ''.fxml'' template files. 

===== Hello World =====


There are a few helpful resources to get started:

  * Examples on GitHub [[https://github.com/openjfx/samples]]
  * Running from the CLI [[https://openjfx.io/openjfx-docs/#install-javafx]]
  * Run HelloWorld using Maven [[https://openjfx.io/openjfx-docs/#maven]]

Here is a simple Hello World example:

<code java HelloFX.java>
// Feom https://github.com/openjfx/samples/blob/master/HelloFX/CLI/hellofx/HelloFX.java
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class HelloFX extends Application {

    @Override
    public void start(Stage stage) {
        String javaVersion = System.getProperty("java.version");
        String javafxVersion = System.getProperty("javafx.version");
        Label l = new Label("Hello, JavaFX " + javafxVersion + ", running on Java " + javaVersion + ".");
        Scene scene = new Scene(new StackPane(l), 640, 480);
        stage.setScene(scene);
        stage.show();
    }

    public static void main(String[] args) {
        launch();
    }

}
</code>