Add JavaFX Label - (Using Only Java / JavaFX Code) - To Existing GUI Created With Scenebuilder / FXML - javafx

Question

I Created a complete GUI using ONLY Scenebuilder FXML Techniques
Something Like This :-
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage primaryStage) throws Exception{
Parent root=FXMLLoader.load(getClass().getResource("backupmenu.fxml"));
primaryStage.setTitle("Backup Affected Files And Folders Only");
primaryStage.setScene(new Scene( root, 800, 400));
primaryStage.show();
}
}
However I want to add a label to that SAME EXISTING GUI but this time using ONLY Java Code / JavaFX Label Techniques ?
I.E Using Traditional Methods such as this Example Below :-
// launch the application
public void start(Stage s)
{
// set title for the stage
s.setTitle("creating label");
// create a label
Label b = new Label("This is a label");
// create a Stack pane
StackPane rootpane = new StackPane();
// add password field
rootpane.getChildren().add(b);
// create a scene
Scene sc = new Scene(rootpane, 200, 200);
// set the scene
s.setScene(sc);
s.show();
}
public static void main(String args[])
{
// launch the application
launch(args);
}
}
I cannot find a web search result that even comes close to matching my very specific question .
Can i combine the 2 techniques - Is it Possible ?

Answer 1

Yes, this is possible.
You need a reference to the Parent (some kind of container Pane or Node) you want to add the Label to in your controller class.
For example, suppose your FXML defines a VBox with an id of "root":
<VBox fx:id="root">
In your controller, define a reference to that VBox:
#FXML
private VBox root;
Then you can add anything you want to the VBox:
root.getChildren().add(new Label("Hi, I'm a new Label!"));