Stackoverflow example 1

example1.java

/*==========
Main Class
==========*/
URL locations = Main.class.getResource("your.fxml");
FXMLLoader loader = new FXMLLoader();
loader.setLocation(locations);
loader.setBuilderFactory(new JavaFXBuilderFactory());
Parent root = loader.load(locations.openStream());
Scene scene = new Scene(root, 650, 340);
primaryStage.setScene(scene);
primaryStage.show();

MyController controller = new MyController();
controller.initMyVariables("NoName");
String name = controller.getMyVariable();

/*===================
MyController Class
===================*/

public class MyController implements javafx.fxml.Initializable{
  
  String myName;
  @Override
  public void initialize(URL location, ResourceBundle resources) {
  
  }
	
	
  public initMyVariables(String myName){
     this.myName = myName;
  }
	
  public String getMyVariable(){
   return myName;
 }
  
}