Differentiate between HashSet v HashTable

Feature	HashSet	Hashtable
Definition	HashSet is an implementation of the Set interface. It stores unique elements (no duplicates).	Hashtable is an implementation of the Map interface. It maps keys to values (key-value pairs).
Duplicates	HashSet does not allow duplicate elements.	Hashtable allows duplicate values but not duplicate keys.
Ordering	HashSet does not maintain any specific order of elements.	Hashtable does not guarantee any specific order of key-value pairs.
Null Values	HashSet allows a single null value.	Hashtable allows a single null key and any number of null values.
Implementation	HashSet uses a hash table for storage.	Hashtable also uses a hash table for storage (key-value pairs).
Example	java Set<String> names = new HashSet<>(); names.add(“Alice”); names.add(“Bob”); names.add(“Charlie”); System.out.println(names);	java Hashtable<String, Integer> scores = new Hashtable<>(); scores.put(“Alice”, 90); scores.put(“Bob”, 85); scores.put(“Charlie”, 78); System.out.println(scores);

In the examples above, HashSet stores unique names, while Hashtable associates student names with their scores. Remember that HashSet is ideal for maintaining a collection of unique elements, while Hashtable is useful for key-value mappings

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