KnowledgeHub
Questions
Tags
Users
Search
Alex Rivera
|
Logout
Edit Question
Title
Body
I want to have a reversed list view on a list (in a similar way than List#sublist provides a sublist view on a list). Is there some function which provides this functionality? I don't want to make any sort of copy of the list nor modify the list. It would be enough if I could get at least a reverse iterator on a list in this case though. Also, I know how to implement this myself. I'm just asking if Java already provides something like this. Demo implementation: 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(); } }; } }; } I just have found out that some List implementations have descendingIterator() which is what I need. Though there is no general such implementation for List . Which is kind of strange because the implementation I have seen in LinkedList is general enough to work with any List .
Tags (comma-separated)
Save Edits
Cancel