刚学会二维数组

 1 package base.no7;
 2 
 3 import java.util.Arrays;
 4 
 5 public class Erwei {
 6 
 7     /**
 8      * @param args
 9      */
10     public static void main(String[] args) {
11         // TODO Auto-generated method stub
12         int a[][] = new int[3][5];
13         for (int i = 0; i < a.length; i++) {
14             for (int j = 0; j < a[i].length; j++) {
15                 a[i][j] = i * j;
16             }
17         }
18         System.out.println(Arrays.toString(a[0]));
19         System.out.println(Arrays.toString(a[1]));
20         System.out.println(Arrays.toString(a[2]));
21     }
22 }