@Override
public void start(Stage primaryStage) throws IOException {

    this.PrimaryStage = primaryStage;
    MainWindow();
}

public void MainWindow() throws IOException {

        FXMLLoader loader = new FXMLLoader(Main.class.getResource("MainWindowView.fxml"));
        AnchorPane pane = loader.load();
        MainWindowsController mainWindowsController = loader.getController();
        Scene scene = new Scene(pane);
        PrimaryStage.setScene(scene);
        PrimaryStage.show();

}

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