동일한 패키지 내에서 여러 독립형 Java 애플리케이션을 시작하려면 어떻게 해야 합니까?

public class FirstModule {
    private BorderPane view;

    public FirstModule() {
        // Create and configure the view
    }

    public Parent getView() {
        return view;
    }
}

FirstModule firstModule = new FirstModule();
Scene scene = new Scene(firstModule.getView());
Stage stage = new Stage();
stage.setScene(scene);
stage.show();

public class FirstApplication extends Application {
    @Override
    public void start(Stage primaryStage) {
        Scene scene = new Scene(new FirstModule().getView());
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}

public class CompositeModule {
    private HBox view;

    public CompositeModule() {
        // Create buttons to launch individual modules
    }

    public Parent getView() {
        return view;
    }
}

public class CompositeApplication extends Application {
    @Override
    public void start(Stage primaryStage) {
        Scene scene = new Scene(new CompositeModule().getView());
        primaryStage.setScene(scene);
        primaryStage.show();
    }
}