Java tutorial
import java.util.Arrays; import java.util.stream.Collectors; import java.util.stream.Stream; public class Main { public static void main(String[] args) { Integer[] numbers = { 1, 2, 3, 4 }; Stream<Integer> arrayStreams2 = Arrays.stream(numbers); System.out.println(arrayStreams2.collect(Collectors.toList())); } }