TreeSet Data Structure in JAVA

NOTES

TreeSet in Java is a class that implements the Set interface and provides a sorted, navigable set of elements. It is an implementation of the Red-Black tree data structure that maintains elements in a sorted order. This means that the elements are always sorted in their natural order or according to a Comparator specified at the time of creation.

Here are some important features of TreeSet in Java:

1. The TreeSet class guarantees that the elements will be stored in a sorted order.

2. TreeSet does not allow null elements, because null values cannot be compared.

3. TreeSet is not thread-safe, so it is recommended to use it with caution in multi-threaded environments.

4. TreeSet offers efficient operations for adding, removing, and finding elements.

5. TreeSet provides methods for finding the first and last elements, and for finding elements that are greater or less than a specified value.

6. TreeSet allows iterating through the elements in ascending order using the iterator() method.