SCJP題庫第093題

10. class Nav{

11.   public enum Direction { NORTH, SOUTH, EAST, WEST }

12.   }

13.   public class Sprite{

14.     //insert code here

15.   }

Which code, inserted at line 14, allows the Sprite class to compile?

A. Direction d = NORTH;

B. Nav.Direction d = NORTH;

C. Direction d = Direction.NORTH;

D. Nav.Direction d = Nav.Direction.NORTH;

 

Ans: Ｄ

 

解說:

列舉型態可視為類別的內部靜態類別，使用時以使用靜態成員的方式。