package serializer; import javafx.application.Application; import javafx.scene.Group; import javafx.scene.Scene; import javafx.stage.Stage; public class App extends Application { public static void main(String[] args) { launch(args); } @Override public void start(Stage primaryStage) { Group root = new Group(); DrawerWithSave container = new DrawerWithSave(800, 600); root.getChildren().add(container); primaryStage.setScene(new Scene(root)); primaryStage.show(); } }