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......
    for(int i=0;i<arr.length;i++){
        //注意表达二维数组i是小于arr.length
        //j是小于arr[i].length;
        //字符串是小于arr.length();
        for(int j=0;j<arr[i].length;j++){
            sum+=arr[i][j];
        }
    }

    return sum;
}

}