/**
* Retrieves the next element in the descending iteration.
*
* @return The next element in the iteration.
* @throws ConcurrentModificationException if the expected modification count does not equal
* that of the underlying {@code LinkedList}.
* @throws NoSuchElementException if the iteration has no more elements.
*/
@Override
public E next() {
return iterator.previous();
}
/**
* Removes from the underlying {@code LinkedList} the last element returned by this descending
* iterator. This method can be called only once per call to {@link #next()}.
*
* <p>The behavior of an iterator is unspecified if the underlying collection is modified while
* the iteration is in progress in any way other than by calling this method.
*
* @throws ConcurrentModificationException if the expected modification count does not equal
* that of the underlying {@code LinkedList}.
* @throws IllegalStateException if the {@link #next()} method has not previously been called or
* the {@link #remove()} method has already been called after the last call to the {@link
* #next()} method.
*/
@Override
public void remove() {
iterator.remove();
}
/**
* Returns the previous element in this descending iteration.
*
* @return The previous element in this iteration.
* @throws ConcurrentModificationException if the expected modification count does not equal
* that of the underlying {@code LinkedList}.
* @throws NoSuchElementException if the iteration has no more elements.
*/
@Override
public boolean hasNext() {
return iterator.hasPrevious();
}