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abstract classes implementing interfaces

 
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The question is from Mhugars test
Given the following interface definition, which definitions are valid?

interface I {
void setValue(int val);
int getValue();
}



the answer is the second choice but I think the third choice is correct as well. Why is it not so. I tried looking through the java spec and it doesnt say an abstrct class cant implemnt an interface(I didnt see it yet).

thanks for any help
 
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Third is not the right choice because
interface methods are public abstractby default.

but in the third choice, they do not have any modifier which means default access, which will result in a compiler error. the methods in the class implementing an interface must have same signature as the interface methods.
 
Inuka Vincit
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thanks, damn I missed that one . That test had some very very good questions.
 
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So if you changed the argument list, it would compile as an overload?
 
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