iterator for replacing list members in Java?

Question

Hmmm... the Java Iterator<T> has a remove() method but not a replace(T replacement) method.

Is there an efficient way to replace selected items in a List? I can use a for-loop to call get(i) and set(i) which is fine for ArrayList, but would suck for a linked list.

Answer 1

ListIterator.set as returned by List.listIterator() or List.listIterator(int)

(set wouldn't make any sense for, say, a Set iterator.)

Answer 2

You need a ListIterator instead of an Iterator (listIterator() gives you one). Then use the set method.