How do HashSet and TreeSet compare in terms of performance?

How do HashSet and TreeSet compare in terms of performance?

HashSet generally offers constant time performance for basic operations like add, remove, and contains, while TreeSet provides logarithmic time performance due to its underlying Red-Black tree structure.

What about memory usage between the two?

HashSet typically uses more memory because it stores elements in a hash table, while TreeSet uses less memory as it maintains a sorted tree structure.

When should I use one over the other?

Use HashSet when you need fast access and don't care about order. Use TreeSet when you need sorted elements and can afford slower performance.

Are there any specific scenarios where one is significantly better?

Yes, if you frequently need to retrieve elements in a sorted order, TreeSet is better. For large datasets with frequent insertions and deletions, HashSet is usually preferred.