Advanced HashMap Series: The equals() and hashCode() Contract
How One Broken Rule Can Cripple Your HashMap
May 1, 20257 min read10
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Articles tagged with #hashmap
Advanced HashMap Series: How HashMap Works Internally (Java 8 and Above)
Kicking off the advanced HashMap series with a deep technical breakdown: treeification thresholds, capacity safeguards, Red-Black Trees and a lot more
Apr 28, 20253 min read17
Moms are Hashmapping Geniuses, I Am Not -Part 3: Let's Code a HashMap in Java
From Drawers to Code I thought I understood HashMap. I mean — I wrote two whole blogs about it.With analogies. Diagrams. Even kitchen drawers. But then I stared at a blank Java file. Nothing happened. Just me. A blinking cursor. And a brain that went...
Apr 8, 20255 min read26
Moms are Hashmapping Geniuses - Part 2: Rehashing, Load Factor and an Ever Expanding Kitchen
A Continuation of the Journey Now that I had a pretty solid mental model of how HashMap works — and how my mom had been resolving collisions in God Mode all along — something else started to bug me. Sure, collisions were clever. Linear probing, chain...
Apr 8, 20257 min read13
Moms are Hashmapping Geniuses - Part 1: HashMap, Hashing, Collision and an Organized Kitchen
The Kitchen Where It All Began I’ve used HashMap for years.Put a key, get a value. Fast. Clean. Easy. I never really thought about how it works. It just… worked. Then one day, I was helping my mom organize our kitchen. We had a lot of drawers — each ...
Apr 8, 20258 min read20