366      *

   366      *

   367      * @see #remove(Object)

   367      * @see #remove(Object)

   368      * @see #contains(Object)

   368      * @see #contains(Object)

   369      */

   369      */

   370     public boolean removeAll(Collection<?> c) {

   370     public boolean removeAll(Collection<?> c) {

   371         boolean modified = false;

   372         boolean modified = false;

   372         Iterator<?> it = iterator();

   373         Iterator<?> it = iterator();

   373         while (it.hasNext()) {

   374         while (it.hasNext()) {

   374             if (c.contains(it.next())) {

   375             if (c.contains(it.next())) {

   375                 it.remove();

   376                 it.remove();

   399      *

   400      *

   400      * @see #remove(Object)

   401      * @see #remove(Object)

   401      * @see #contains(Object)

   402      * @see #contains(Object)

   402      */

   403      */

   403     public boolean retainAll(Collection<?> c) {

   404     public boolean retainAll(Collection<?> c) {

   404         boolean modified = false;

   406         boolean modified = false;

   405         Iterator<E> it = iterator();

   407         Iterator<E> it = iterator();

   406         while (it.hasNext()) {

   408         while (it.hasNext()) {

   407             if (!c.contains(it.next())) {

   409             if (!c.contains(it.next())) {

   408                 it.remove();

   410                 it.remove();