public class Array2BianLi {
public static void main(String[] args) {
int[][] arr = { { 1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 9 } };
int sum = 0;
System.out.println("遍历二维数组:");
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr[i].length; j++) {
System.out.print(arr[i][j] + " ");
sum += arr[i][j];
}
System.out.println();
}
System.out.println("所有元素总和为:" + sum);
}
}