如何在JavaFx中以编程方式创建2行3列的GridPane？

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;

public class GridPaneExample extends Application {

    @Override
    public void start(Stage primaryStage) {
        GridPane gridPane = new GridPane();
        gridPane.setPadding(new Insets(10));
        gridPane.setHgap(10);
        gridPane.setVgap(10);

        // 创建2行3列的GridPane
        for (int row = 0; row < 2; row++) {
            for (int col = 0; col < 3; col++) {
                Label label = new Label("Row " + row + ", Col " + col);
                gridPane.add(label, col, row);
            }
        }

        Scene scene = new Scene(gridPane, 400, 300);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

    public static void main(String[] args) {
        launch(args);
    }
}