Java tutorial
import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Button; import javafx.scene.layout.VBox; import javafx.stage.Stage; public class Main extends Application { public static void main(String[] args) { Application.launch(args); } @Override public void start(Stage stage) { Button okBtn = new Button("OK"); Button cancelBtn = new Button("Cancel"); cancelBtn.setPrefWidth(100); VBox root = new VBox(); root.getChildren().addAll(okBtn, cancelBtn); Scene scene = new Scene(root); stage.setScene(scene); stage.setTitle("Overriding Node Sizes"); stage.show(); } }