Ikk：新頁面: 21. class Money{ 22. private String country = "Canada"; 23. public String getC(){return country;} 24. } 25. class Yen extends Money{ 26. public String getC(){return super...

2013-03-30T07:11:06Z

新頁面: 21. class Money{ 22. private String country = "Canada"; 23. public String getC(){return country;} 24. } 25. class Yen extends Money{ 26. public String getC(){return super...

新頁面

21. class Money{
22. private String country = "Canada";
23. public String getC(){return country;}
24. }
25. class Yen extends Money{
26. public String getC(){return super.country;}
27. }
28. public class Euro extends Money{
29. public String getC(){return super.getC();}
30. public static void main(String[] args){
31. System.out.print(new Yen().getC() + " " + new
Euro().getC());
32. }
33. }

What is the result?
A. Canada
B. null Canada
C. Canada null
D. Canada Canada
E. Compilation fails due to an error on line 26.
F. Compilation fails due to an error on line 29.

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<span style="font-size:medium;">解答</span>

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<span style="font-size: medium;">Ans: E </span>

<span style="font-size:medium;"> 解說:
Money中的country存取屬性是private，在類別Yen中無法存取country屬性
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{{SCJP 1.6版考題講解}}

SCJP 1.6版考題 057 - 修訂歷史

Ikk：新頁面: 21. class Money{ 22. private String country = "Canada"; 23. public String getC(){return country;} 24. } 25. class Yen extends Money{ 26. public String getC(){return super...