如何在多个数组中找到最大值并返回java中第一个索引的值？

public class Main {
    public static void main(String[] args) {
        int[] array1 = {1, 5, 3, 9, 2};
        int[] array2 = {7, 2, 4, 6, 8};
        int[] array3 = {10, 3, 6, 2, 9};

        int maxIndex = findMaxIndex(array1, array2, array3);
        System.out.println("最大值的索引为：" + maxIndex);
    }

    public static int findMaxIndex(int[]... arrays) {
        int maxValue = arrays[0][0];
        int maxIndex = 0;

        for (int i = 0; i < arrays.length; i++) {
            for (int j = 1; j < arrays[i].length; j++) {
                if (arrays[i][j] > maxValue) {
                    maxValue = arrays[i][j];
                    maxIndex = j;
                }
            }
        }

        return maxIndex;
    }
}