```java import java.util.Iterator; import java.util.List; import java.util.concurrent.CopyOnWriteArrayList; public class Arrays2Test { public static void main(String[] args) { List<Integer> list = new CopyOnWriteArrayList<>(List.of(1, 2, 3)); Iterator<Integer> it1 = list.iterator(); list.add(4); Iterator<Integer> it2 = list.iterator(); while (it1.hasNext()) { System.out.println(it1.next()); } System.out.println("****"); while (it2.hasNext()) { System.out.println(it2.next()); } } } ```