Randomizing an array

Question

I wish to implement the Dr.D.E.Knuth\'s Subtractive RANDOM number generation algorithm. I wish to implement an ATM panel on which when very time user log-in the buttons will be

Answer 1

To set the position of the buttons randomly in the panel, instead of using n from 0 to 9 in the loop, you can use a random value from 0 to 9. Be sure you don't use the same value twice.