Collection Framework in Java - #18 - HashSet Class Overview | Key Points to Note

In this video, we will take a look at the HashSet class overview.

Following are few key points to note about HashSet in Java -
- HashSet cannot contain duplicate values.
- HashSet allows null value.
- HashSet is an unordered collection. It does not maintain the order in which the elements are inserted.
- HashSet internally uses a HashMap to store its elements.
- HashSet is not thread-safe. If multiple threads try to modify a HashSet at the same time, then the final outcome is not deterministic. You must explicitly synchronize concurrent access to a HashSet in a multi-threaded environment.

[shubhamswaraj]

Which technology is mostly used to secure Microservices OKTA with SSO, keycloak or JWT in industry or how its decided which one to use