List转Iterable

static <T> Iterable<T> iterableReverseList(final List<T> l) {
    return new Iterable<T>() {
        public Iterator<T> iterator() {
            return new Iterator<T>() {
                ListIterator<T> listIter = l.listIterator(l.size());
                public boolean hasNext() { return listIter.hasPrevious(); }
                public T next() { return listIter.previous(); }
                public void remove() { listIter.remove(); }
            };
        }
    };
}