VBox(double spacing) constructor from VBox has the following syntax.
public VBox(double spacing)
In the following code shows how to use VBox.VBox(double spacing) constructor.
/*from ww w . j a v a 2 s . co m*/ import javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class Main extends Application { @Override public void start(final Stage stage) { stage.setTitle("HTML"); stage.setWidth(500); stage.setHeight(500); Scene scene = new Scene(new Group()); VBox vbox = new VBox(8); // spacing = 8 vbox.getChildren().addAll(new Button("Cut"), new Button("Copy"), new Button("Paste")); scene.setRoot(vbox); stage.setScene(scene); stage.show(); } public static void main(String[] args) { launch(args); } }