二维数组理解图例

示例 

int[][][] nums = new int[2][2][2];
Random random = new Random();
for (int[][] num : nums) {
    for (int[] ints : num) {
        for (int i = 0; i < ints.length; i++) {
            // 生成100以内的随机数
            ints[i] = random.nextInt(100);
        }
    }
}
for (int[][] num : nums) {
    for (int[] ints : num) {
        for (int anInt : ints) {
            System.out.println(anInt);
        }
    }
}