Enthuware

In the explanation of the question, in one place it reads:
Path getName(int index)
The index parameter is the index of the name element to return... The element that is farthest from the root has index count -1.

In another place it reads:
If you pass a negative index (to Path.getName( ))... java.lang.IllegalArgumentException is thrown.

Don't these two explanations contradict each other?

Is this question going to get answered?

There is no contradiction. Please read it carefully. It says, "count -1" not just -1. e.g. if the total number of elements in a path is 10, then the index of the farthest element from root is 10 - 1 i.e. 9.