SCJP 1.6版考題 093

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;

解答

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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。