About Question enthuware.ocajp.i.v8.2.1012 :

[rowan.jones]

This question doesn't quite make sense to me.

Consider the options written out.

1 must be valid.

2 is a method, not a constructor.

3 would be written like

Code: Select all

public TestClass(String s);

Which is wrong. At first glance you might think it's for an interface, but interfaces don't have constructors.

4 must be correct.

5 would be written like

Code: Select all

public TestClass(String s1, String s2){

};

which is wrong since it has a ; at the end.

I can only see 2 valid constructors in this question.

Could someone enlighten me to the 3rd correct option?

Thanks!

[admin]

Did you read the explanation written below the 5th option?

The compiler ignores the extra semi-colon.

HTH,
Paul.

[flex567]

The explanation for //3 is that the constructor has empty body.
But all other have empty body (only have brackets)??

[admin]

It also explains further what it means by empty (it cannot be abstract). I have updated the explanation to make it more clear.

thank you for your feedback!