Java tutorial
import java.util.ArrayList; import java.util.List; import java.util.stream.IntStream; public class Main { public static void main(String[] args) { IntStream i = IntStream.of(6, 5, 7, 1, 2, 3, 3); List<Integer> v = i.collect(ArrayList::new, ArrayList::add, ArrayList::addAll); System.out.println(v); } }