Reverse iteration through ArrayList gives IndexOutOfBoundsException

Question

When I reverse iterate over an ArrayList I am getting a IndexOutOfBoundsException. I tried doing forward iteration and there is no problem. I expect and know that there are five

Answer 1

The most elegant way is to reverse the array and then use a direct (or even implicit) iterator :

Collections.reverse(arrayList);
for (Object item : arrayList) {
    ...
}