第104題

Given:
10. class Line{
11. public static class Point{}
12. }
13.
14. class Triangle{
15. //insert code here
16. }
Which code, inserted at line 15, creates an instance of the Point class defined in Line?
A. Point p = new Point();
B. Line.Point p = new Line.Point();
C. The Point class cannot be instatiated at line 15.
D. Line l = new Line(); l.Point p = new l.Point();
答案：B
參考：8-5 內部類別

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產生static物件實體要冠上外部類別名稱,該類別名稱.