Accessing next element in Treeset in Java

Question

Is there any way to access the successor or the predecessor of an element in Treeset of Java. Or is there any way of getting the iterator of a particular element so that we can use iterator.next() to get the next element.

Answer 1

use higher/lower

with the TreeSet set

is set.higher(e) like e.next() and set.lower(e) like e.prev()

Answer 2

You can get a particular TreeSet's iterator using the iterator() method, and you can retrieve a reverse iterator with the use of descendingIterator() method.