Tree Set in Java

TreeSet is a part of the Java Collections Framework and implements the NavigableSet interface, backed by a TreeMap. It stores elements in sorted order (natural ordering or via a custom comparator) and ensures no duplicates.

🔧 Key Features:
Sorted: Maintains elements in ascending order.

No Duplicates: Automatically removes duplicate entries.

Uses Red-Black Tree: Internally implemented using a self-balancing binary search tree (Red-Black Tree).

Faster Search than LinkedList: Because of sorted tree structure.

Null Not Allowed: Does not allow null elements (throws NullPointerException).

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