Sorting ArrayList of Arraylist in java

Question

I have an ArrayList of ArrayList of String.

In Outer ArrayList on each index each Inner ArrayList has four items have four parameters.

1. Contacts Id

Answer 1

I feel bad posting this, because List would be the much better choice. Something like this would be possible, though:

ArrayList> yourList = ...
Collections.sort(yourList, new Comparator>() {
    @Override
    public int compare(ArrayList one, ArrayList two) {
        return one.get(1).compareTo(two.get(1));
    }
});