- private T curr;
- private Iterator<T> delg;
- public ListIterator(List<T> list) {
- curr = null;
- delg = list.iterator();
- }
- @Override
- public boolean hasNext() {
- return delg.hasNext();
- }
+ private T curr;
+ private Iterator<T> delg;
+ public ListIterator(List<T> list) {
+ curr = null;
+ delg = list.iterator();
+ }
+ @Override
+ public boolean hasNext() {
+ return delg.hasNext();
+ }
+
+ @Override
+ public T next() {
+ curr = delg.hasNext()?delg.next():null;
+ return curr;
+ }
+
+ public T peek() {
+ return curr==null?next():curr;
+ }