using two iterators in one ArrayList

Question

Edit: Thank you for all your prompt replies. Now I see the assignment won\'t work. From another thread I read that iterator in Java is much less powerful than iterator in C+

Answer 1

You shouldn't do:

Iterator bIter = aIter;

Because there is no copy constructor etc in Java; bIter will be a reference to the same underlying iterator.

You could use a ListIterator this way:

ListIterator aItr = aList.listIterator();
while (aItr.hasNext()) {
 int a = aItr.next();
 ListIterator bItr = aList.listIterator(aItr.previousIndex());
 while (bItr.hasNext()) {
   // ...
 }
}

But If you are thinking that ListIterator should have had a copy() method or something along those lines, I agree with you...