Why Your HashSet Has Duplicates 😳

Confused about Java equals() and hashCode()?

Learn why HashSet sometimes shows duplicates — even when equals() returns true.

✔ equals() → checks equality
✔ hashCode() → finds bucket
✔ Hash collections use BOTH
✔ Different bucket → duplicate confusion
✔ Always override BOTH

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Видео Why Your HashSet Has Duplicates 😳 канала Silent Dev Lab