二维数组之和

[只会写bug的程序媛]

package day02; public class ForTwoArray { public static void main(String[] args) { //二维数组循环遍历 int[][] arr = {{1, 2, 3}, {4, 5}, {6, 7, 8, 9}}; ForArray(arr); } public static void ForArray(int[][] arr) { int sum=0; for (int i = 0; i < arr.length; i++) {//arr.length是统计二维数组中有几个一维数组 for (int j = 0; j < arr[i].length; j++) {//arr[i].length是统计每个一维数组的长度 sum=sum+arr[i][j]; System.out.print(arr[i][j]); } } System.out.println("二维数组之和为："+sum); } }