Shuffle a list in Java

// www  . j  ava  2  s .  c o m
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class Main
{
   public static void main(String[] args)
   {
      List<Integer> numbers = new ArrayList<Integer>();
      for (int i = 1; i <= 49; i++)
         numbers.add(i);
      Collections.shuffle(numbers);
      List<Integer> winningCombination = numbers.subList(0, 6);
      Collections.sort(winningCombination);
      System.out.println(winningCombination);
   }
}