Need Java Help Java, Arraylist and removal

Every time I try to call ArrayList.remove() on an element while in a for each loop, Java throws a ConcurrentModificationException.  I need to remove an element in a for loop because in there is where I look through the objects to find objects which meet the criteria for removal.

Alternatively, use an iterator.


Iterator<Renderable> it = renderables.iterator();
while(it.hasNext()) {
    Renderable renderable = it.next();
    renderable.updateState();

    if(renderable.markedForDeletion()) {
        it.remove();
    }
}