/**

* Computes the number of stars for a given rating to the nearest half star. This is

* equivalent to rounding the input to the nearest 0.5. For example, a something with

* a rating of 3.34 would have a star rating of 3.5 stars.

*

* @param rating An average rating as a double in the range of 1.0-5.0 inclusive

* @return The star rating of the input rating

*/

public double starRating(double rating){

I need a formula to calculate starRating. I dont know how to put it in such a way that if a rating exists, it should round to the nearest .5, which would be my starRating