Netbeans GUI and non-static method
===

I'm trying to make an app where I have 3 classes. A Controlller (Main Class), SerialHandler and MainWindow which is a JFrame Form created with the NetBeans Gui Builder.

   

         public class Controller {
             
            SerialHandler serialHandler;
            
            MainWindow mainWindow;
            
            
            /**
             * @param args the command line arguments
             */
            public static void main(String[] args) {
                // TODO code application logic here
               Controller controller = new Controller();
               controller.initializeSystem(controller);
              
               
            }
        
        public void initializeSystem(Controller _controller){
                
               mainWindow = new MainWindow(_controller);
               mainWindow.setVisible(true);
    }
    
     public anotherMethod(){
    
               mainWindow.setMyLabelText("Hello");
    
    }



So the problem is that if I doit like that and an event from the SerialHandler class calls anotherMethod(), the setMyLabelText method doesn't work but if I called it from the initializeSystem(); it works.

Now if I declare the mainwindow inside the main then the mainWindow instance is not visible from the anotherMethod().

If I declare the mainWindow object outside the main and try to use its method from main context I can't because the mainWindow object have been declared outside the non-static context.

Could anyone help me or at least point me in the right direction?

Thanks!