题解 | 二维数组求和

import java.util.Scanner;
public  class Main 
{
    public static void main(String[] args)
    { 
       int[][] a={{11,33,55},{22,44,66,88},{131,214,315,146},{928,827,726,625},{424,525}};
       System.out.println(sum(a));
    }
    public static int sum(int[][] a)
    {
        int num=0;
        for(int i=0;i<a.length;i++)
        {
            for(int j=0;j<a[i].length;j++)
            {
                num+=a[i][j];
            }
        }
        return num;
    }
}