如何在Java中创建多维ArrayList？

import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        ArrayList<ArrayList<Integer>> multiDimensionalArrayList = new ArrayList<>();

        for (int i = 0; i < 5; i++) {
            ArrayList<Integer> innerArrayList = new ArrayList<>();
            for (int j = 0; j < 5; j++) {
                innerArrayList.add(i * j);
            }
            multiDimensionalArrayList.add(innerArrayList);
        }

        for (ArrayList<Integer> innerArrayList : multiDimensionalArrayList) {
            System.out.println(innerArrayList);
        }
    }
}