Implement an algorithm to shuffle an array of numbers or objects. The algorithm for shuffl...

Implement an algorithm to shuffle an array of numbers or objects. The algorithm for shuffling should be the following:

for (each index i) {	choose a random index j where j >= i.	swap the elements at indexes i and j.}

(The constraint about j being greater than or equal to i is actually quite important, if you want your shuffling algorithm to shuffle fairly. Why?)