What is the difference between HashSet and Hashtable?
HashSet is a collection that contains no duplicate elements and is not synchronized, while Hashtable is synchronized and allows duplicate keys.
Can you explain why HashSet is not synchronized?
HashSet is designed for performance and allows multiple threads to access it without locking, which can lead to faster operations.
Are there any scenarios where I should use Hashtable instead of HashSet?
Yes, if you need thread safety and want to ensure that only one thread can access the Hashtable at a time, use Hashtable.
What about performance differences between the two?
HashSet generally offers better performance for operations like add, remove, and contains due to its non-synchronized nature.
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