What is the best Collection/Iterator to use?

Anyone come across this scenario before?
I have a list of elements that I want to put into a Collection/List of some description. I then want to iterate through the list searching for an element that matches my requirements.
When I find one I then want to 'read ahead' through the list to see if there is a matching element matching my requirements.
If I find I match, I'd like to be able to delete both elements from the list and then continue reading through the list after the first element I found.
I've had a look at ListIterator, but this doesn't seem to allow you to re-position the cursor or even restart() the iterator.
Can anyone tell me if any or all of this is possible?

Place the items in a Set. Since Sets don't allow duplicates, that problem is solved. Then just iterate the set and delete those entries you don't want.

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