I think you still don't get it....Say there is a queue with elements a, b and c in that order. I want to know what the best way to put the elements in a random order, so you might save the elements off to an array shuffle them, and then put them back into the queue so the new order in the queue would be b, a, c.
But keep in mind a, b, and c are just arbitrary elements if that helps you understand it....