题解 | #二维数组求和#

public class Main {
    public static void main(String[] args) {
        int[][]  arr = {{11, 33, 55}, {22, 44, 66, 88}, {131, 214, 315, 146}, {928, 827, 726, 625}, {424, 525}};
        int sum = add(arr);
        System.out.println(sum);
    }

    public static int add(int[][] arr) {
        int sum = 0;

        //write your code here......
        //按行遍历
        for (int i = 0; i < arr.length; i++) {
            //按列遍历
            for (int i1 = 0; i1 < arr[i].length; i1++) {
                sum += arr[i][i1];
            }
        }

        return sum;
    }
}