How to really shuffle a deck of cards

Question

When I need to shuffle a deck of poker cards in Java/Android, I use Collections.shuffle(List list), of course. I\'ve ever been doing this and the results s

Answer 1

Stealing an answer from the article you link:

START WITH FRESH DECK
GET RANDOM SEED
FOR CT = 1, WHILE CT <= 52, DO
X = RANDOM NUMBER BETWEEN CT AND 52 INCLUSIVE
SWAP DECK[CT] WITH DECK[X]

The random number generator should be good and use a 64 bit seed that you pick unpredictably, preferably using hardware.