package fs; import javafx.application.Application; import javafx.event.ActionEvent; import javafx.event.EventHandler; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.StackPane; import javafx.stage.Stage; public class TestFS extends Application { /** * @param args the command line arguments */ public static void main(String[] args) { launch(args); } @Override public void start(final Stage primaryStage) { primaryStage.setTitle("TestFS"); Button btn = new Button(); btn.setText("Fullscreen"); btn.setOnAction(new EventHandler() { @Override public void handle(ActionEvent event) { primaryStage.setFullScreen(true); } }); StackPane root = new StackPane(); root.getChildren().add(btn); primaryStage.setScene(new Scene(root, 300, 250)); primaryStage.show(); } }