JavaFX 2.0: StackPane

package javafx_layoutpanes;

import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.text.Text;
import javafx.stage.Stage;

/**
*
* @web http://java-buddy.blogspot.com/
*/
public class JavaFX_LayoutPanes extends Application {

  /**
   * @param args the command line arguments
   */
  public static void main(String[] args) {
      launch(args);
  }

  @Override
  public void start(Stage primaryStage) {
      primaryStage.setTitle("java-buddy.blogspot.com: StackPane");
      Group root = new Group();
    
      double width = 400;
      double height = 300;
    
      Scene scene = new Scene(root, width, height, Color.WHITE);

      StackPane stackPane = new StackPane();
      stackPane.setPrefSize(width, height);
      stackPane.setAlignment(Pos.CENTER);
    
      Button cbutton = new Button("Center Button");
      Button button = new Button("Button");
      Text text = new Text("Text");
    
      stackPane.getChildren().addAll(cbutton, button, text);
    
      root.getChildren().add(stackPane);
      primaryStage.setScene(scene);
      primaryStage.show();
  }
}

Compare with Create StackPane using FXML.