package shuffle; import java.util.*; /** * This program demonstrates the random shuffle and sort algorithms. * @version 1.11 2012-01-26 * @author Cay Horstmann */ public class ShuffleTest { public static void main(String[] args) { List numbers = new ArrayList<>(); for (int i = 1; i <= 49; i++) numbers.add(i); Collections.shuffle(numbers); List winningCombination = numbers.subList(0, 6); Collections.sort(winningCombination); System.out.println(winningCombination); } }