About Question enthuware.ocajp.i.v7.2.1225 :

[jswmth]

I understand the nuances of the discussion above but I too also think that the option "It throws StringIndexOutOfBoundsException if passed a value higher than or equal to the length of the string (or less than 0)." is true, because that is exactly what charAt() currently does.

Just because the exception thrown by charAt() could be changed in future doesn't mean that the option is wrong at the moment.

Perhaps the option should be reworded to:
"It throws StringIndexOutOfBoundsException if passed a value higher than or equal to the length of the string (or less than 0) and your code would be safe to anticipate this exception."

[admin]

That is your call and it is fine.

[stevemak]

I find this question very unfair as it has more than 2 correct answers. The answer:

It throws StringIndexOutOfBoundsException if passed a value higher than or equal to the length of the string (or less than 0)

Is very valid as this is what get's returned in practice, same reason why Java certification requires experience before taking any certification not just theories. If someone is able to show me code that returns a different exception other than StringIndexOutOfBoundsException if you pass a value higher than or equal to length of string then I might change my mind. If there is no such evidence I say what the method does in practice takes precedence over any documentation or explanation we might give. When I'm in the field what exception do I see not what it might be? I hope the actual exam does not have such answers for this question as it's just unfair !!