Hashmap

3 articles
tag: hashmap 3 published articles
Java

HashMap: Tree Bins and Performance

Explore Java 8's tree bins enhancement: Red-Black trees in collided buckets, treeify thresholds, the HashDoS security fix, and hybrid linked list/tree approach.

HashmapJavaPerformance+2 more
June 10, 2026
26 min
Java

HashMap: Buckets and Collisions

Journey inside HashMap's O(1) average performance: bucket arrays, hash code transformation, collision handling via chaining, and why power-of-2 capacity matters.

BucketsCollisionsHashing+3 more
June 10, 2026
26 min
Algorithms

HashMap / Hash Table

Visual guide to HashMap: hashing, buckets, collision handling. Watch how keys map to values with O(1) average operations.

Data StructureHash TableHashmap+1 more
June 10, 2026
4 min