编辑代码

class Main {
    public static void main(String[] args) {
int[] arr1 = {5, 7, 100, 2, 1};
int[] arr2 = {8, 10, 30, 9, 70};
int[] arr3 = {-59, -20, -77, -4, -49};
int[][] arrList = {arr1, arr2, arr3};
for (int i = 1; i < 4; i++) {
System.out.println("arr" + i + "的最大值为：" + findMax(arrList[i - 1]));
}
}

public static int findMax(int[] arr) {
int max = arr[0];
for (int i = 1; i < arr.length; i++) {
if (max < arr[i]) max = arr[i];
}
return max;
}
}