JavaFX -单击二维数组中的内容时获取索引

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;

public class ArrayClickExample extends Application {

    private static final int ROWS = 3;
    private static final int COLS = 3;

    @Override
    public void start(Stage primaryStage) {
        GridPane gridPane = new GridPane();

        // 创建二维数组并显示在UI界面上
        int[][] array = new int[ROWS][COLS];
        for (int row = 0; row < ROWS; row++) {
            for (int col = 0; col < COLS; col++) {
                Rectangle rectangle = new Rectangle(50, 50, Color.WHITE);
                rectangle.setStroke(Color.BLACK);
                rectangle.setOnMouseClicked(event -> {
                    // 获取被单击元素的索引
                    int clickedRow = GridPane.getRowIndex(rectangle);
                    int clickedCol = GridPane.getColumnIndex(rectangle);
                    System.out.println("Clicked index: [" + clickedRow + ", " + clickedCol + "]");
                });
                gridPane.add(rectangle, col, row);
            }
        }

        Scene scene = new Scene(gridPane, 200, 200);
        primaryStage.setScene(scene);
        primaryStage.show();
    }

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