Java TreeSet Class

An implementation using the storage tree set interface is provided in TreeSet. Objects are stored in sort order, sorted in ascending order.

The time to access and retrieve is fairly fast, and storage must quickly find a lot of sorting information when this makes TreeSet a good choice.

The TreeSet class supports four types of constructors. The first form constructs an empty tree group that is sorted in ascending order according to the natural order of its elements:

TreeSet() 

The second form produces an element tree set that contains C.

TreeSet(Collection c)   

The third form constructs an empty tree group that will be sorted according to the comparer specified by the layout.

TreeSet(Comparator comp)   

The fourth form generates an element tree group containing SS:

[A, B, C, D, E, F]

Java TreeSet Class