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......
    int len1 = arr.length;
    for(int i=0;i<len1;i++){
        int len2 = arr[i].length;
        for(int j=0;j<len2;j++){
            sum += arr[i][j];
        }
    }

    return sum;
}

}