How to get the first element of the List or Set? [duplicate]
I'd like to know if I can get the first element of a list or set. Which method to use?
Collection c; Iterator iter = c.iterator(); Object first = iter.next();
(This is the closest you'll get to having the "first" element of a
Set. You should realize that it has absolutely no meaning for most implementations of
Set. This may have meaning for LinkedHashSet and TreeSet, but not for HashSet.)