Java tutorial
import java.util.ArrayList; import java.util.ListIterator; public class Main { public static void main(String[] args) { ArrayList<String> aList = new ArrayList<String>(); aList.add("1"); aList.add("2"); aList.add("3"); aList.add("4"); aList.add("5"); ListIterator<String> listIterator = aList.listIterator(); while (listIterator.hasNext()) { System.out.println(listIterator.next()); } while (listIterator.hasPrevious()) { System.out.println(listIterator.previous()); } } }