TreeSet headSet(E toElement) method in java

Let’s learn TreeSet headSet(E toElement) method in java. TreeSet headSet(E toElement) method in java headSet(E toElement) method of TreeSet class returns a view of the portion of this set whose elements are strictly less than toElement. Syntax: public SortedSet<E> headSet(E toElement) Parameters: toElement high endpoint (exclusive) of the returned set. Throws: ClassCastException – if toElement…