Question

I am creating a little game and looking for a good way to sort this.

By using a LinkedList such as

private final List<Player> waitingRoom = new LinkedList<Player>();

Basically I want to pick 4-5 people from this list and add them in game, allowing for more than 1 game to be played at once.

Answer 1

Random r = new Random();
int picked = r.nextInt(waitingRoom.size());
waitingRoom.get(picked);