Java HashSet Explained from Scratch (Internals & Implementation)
7:08
YouTubeTheQuirkyLearner
Java HashSet Explained from Scratch (Internals & Implementation)
In this video, I explain how Java HashSet works internally and why it is built on top of HashMap. You will learn: • What a HashSet is and its core properties • How HashSet internally uses a HashMap • What the dummy PRESENT object is and why it exists • How HashSet prevents duplicate elements • How hashing, buckets, and collisions work ...
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