Question d’entretien chez Deutsche Bank
How HashSet works internally in Java?
Réponse à la question d'entretien
Utilisateur anonyme
22 sept. 2024
HashSet is internally implemented using an HashMap. Since a Map needs key and value, a default value is used for all keys. Similar to HashMap, HashSet doesn't allow duplicate keys and only one null key, I mean you can only store one null object in HashSet.