蔡明蓉

1. public class Ch30 {
   
2.         public static void main(String[] args) {
   
3.                 int a[]={1,2,3,4};
   
4.                 int b[][]={{1,2,3,4},{1,2,3,4},{1,2,3,4}};
   
5.                 int c[][][]={{{1,2,3,4},{1,2,3,4},{1,2,3,4}},{{1,2,3,4},{1,2,3,4},{1,2,3,4}}};
   
6.                 System.out.println(a.length);
   
7.                 System.out.println(b.length);
   
8.                 System.out.println(c.length);
   
9.         }
   
10. }

複製代碼