SCJP-- 考试问题
它实际上来自SCJP 6 StudyGuide Exam310-065(MGH,2008) 替代文本 http://www.freeimagehosting.net/uploads/1f37466409.png 替代文本 http://www.freeimagehosting.net/uploads/03aaff252a.png 替代文本 http://www.freeimagehosting.net/uploads/b56385a448.png 替代文本 http://www.freeimagehosting.net/uploads/83761fff86.png
在 Kinder 类构造函数中调用 super() 似乎是多余的，因为：
- 书中引用： 替代文本 http://www.freeimagehosting.net/uploads/8984096dc6.png 即不需要显式键入 super()，因为这可以由编译器完成，
- 编译器接受非常好的版本，而无需调用 super()
问题是，如果作者在这方面犯了一些错误问题还是我错过了什么（更有可能）
It's actually from SCJP 6 StudyGuide Exam310-065(MGH,2008)
alt text http://www.freeimagehosting.net/uploads/1f37466409.png
alt text http://www.freeimagehosting.net/uploads/03aaff252a.png
alt text http://www.freeimagehosting.net/uploads/b56385a448.png
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The call to super() in Kinder class constructor seems to be redundant because of:
- quote from the book:
alt text http://www.freeimagehosting.net/uploads/8984096dc6.png
i.e. that there is no need to type super() explicitly, as this can be done by compiler - the compiler accepts very well version without call to super()
The question is, if authors made some mistake in this question or am I missing something (more likely)
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抱歉，我可能遗漏了一些东西（最有可能），但听起来就像文本中所述：
a。该行不能留空，因为括号已经就位。
也就是说，构造函数可以为空......除了空括号将是语法错误（因此它无法编译）。
b.此外，由于调用的超类构造函数是无参数版本，因此必须创建此构造函数。
我想你可能只需要再重新阅读一遍文本，就应该全部明白了。或者我真的对整个事情不感兴趣……在这种情况下，我很抱歉，这里有点晚了。 ;-)
Sorry, I may be missing something (most likely), but it sounds like it's stated in the text:
a. The line cannot be left blank, as the parentheses are already in place.
That is, a constructor can be empty.. except that empty parentheses would be a syntax error (so it wouldn't compile).
b. Further, since the superclass constructor called is the no-argument version, this constructor must be created.
I think you may just have to re-read the text one more time and it should all click. Or I am really off on the whole thing.. in that case I apologize, it's kind of late over here. ;-)