import java.util.Arrays;
import java.util.stream.Stream;
public class Main {
public static void main(String[] args) {
int[] intArray = {1, 2, 3, 4};
Stream<int[]> singleElementStream = Stream.of(intArray);
// OUTPUTS
System.out.println(Arrays.toString(singleElementStream.toArray(Integer[]::new)));
singleElementStream.toArray(); // watch it, it is Object[]
}
}