Inner Class

[Anonymous]

Which of the follwing is true?
1. inner class can be instantiated only in it's enclosing class
2. they can be accessed only within the enclosing class
3. they cannot implement interface
4. they can access final varaibles and final methods within their declaration
scope
5. Top level nested class need not be instantiated
My ans is 4. I am not sure about 5.

[Jim Goodwin]

5 is true too. There is no such thing as a class
that MUST be instantiated.
This whole question is kind of weirdly stated and
I wonder where you got it. Question 4 is especially
odd. What's the point? A non-static inner class
can access *any* variable of its parent instance.

[ricky gonzalez]

Just a free association, a local inner class can have access to only final fields that's declared in the enclosing method. Maybe that was the intended relevance.