How does TreeSet sorting work in Java?

How does TreeSet sorting work in Java?

TreeSet in Java is a part of the Java Collections Framework and implements the Set interface. It stores elements in a sorted order, using their natural ordering or a specified comparator.

Can you explain how it maintains the order of elements?

TreeSet uses a Red-Black tree structure, which is a self-balancing binary search tree. This ensures that elements are always sorted as they are added.

What happens if I try to add a duplicate element?

If you try to add a duplicate element to a TreeSet, it will not be added, as TreeSet does not allow duplicate values.

Are there any performance considerations I should be aware of?

Yes, operations like add, remove, and contains have a time complexity of O(log n) due to the underlying tree structure, which is efficient for large datasets.