// Copyright: Ganesh Samarthyam, 2016; www.codeops.tech import java.util.ArrayList; import java.util.Iterator; import java.util.List; public class ModifyingList { public static void main(String []args) { List aList = new ArrayList<>(); aList.add("one"); aList.add("two"); aList.add("three"); Iterator listIter = aList.iterator(); while(listIter.hasNext()) { System.out.println(listIter.next()); aList.add("four"); } } }