Manually adding IndexOutOfBounds Exception

I'm trying to manually throw an index out of bounds exception for an array. I know that to throw a regular exception, I can do something like:

if(x>array.length){
throw new Exception("Bad choice!");
}

But how can I do the index out of bounds ex开发者_如何学JAVAception?

Thanks

throw new IndexOutOfBoundsException("Index " + x + " is out of bounds!");

The API is a very good resource. Checking it before posting a question could save you the time of doing so.

You can do:

throw new IndexOutOfBoundsException();

throw new IndexOutOfBoundsException("Index out of bound");

Why is this not working?