VBox() constructor from VBox has the following syntax.
public VBox()
In the following code shows how to use VBox.VBox() constructor.
import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.layout.VBox; import javafx.scene.text.Font; import javafx.scene.text.Text; import javafx.stage.Stage; import javafx.stage.StageStyle; //from ww w .j av a 2 s . co m public class Main extends Application { @Override public void start(Stage stage) { stage.initStyle(StageStyle.UNDECORATED); Text text = new Text("Transparent!"); text.setFont(new Font(40)); VBox box = new VBox(); box.getChildren().add(text); final Scene scene = new Scene(box,300, 250); scene.setFill(null); stage.setScene(scene); stage.show(); } public static void main(String[] args) { launch(args); } }