Java

Mar 11, 2023 · 3 min read · 631 words

[Interview Questions] Concurrency vs. Parallelism: Decoding the Simultaneous Illusion

A clear explanation of the difference between concurrency and parallelism, illustrated with practical JVM-based examples commonly asked about in technical interviews.

Java Kotlin Concurrency Parallelism Interview Threads

[Interview Questions] Concurrency vs. Parallelism: Decoding the Simultaneous Illusion

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Dec 2, 2022 · 5 min read · 1000 words

How does HashMap work in Java?

A deep dive into the internal mechanics of Java's HashMap, covering the equals/hashCode contract, bucket distribution, and the binary tree optimization introduced in Java 8.

Java Kotlin Hashmap Data-Structures

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Dec 2, 2022 · 4 min read · 911 words

How to Break Your HashMap in Less Than a Minute

A cautionary demonstration of how using mutable objects as HashMap keys silently corrupts lookups, and the simple rule that prevents it.

Java Kotlin Hashmap Data-Structures Gotchas

How to Break Your HashMap in Less Than a Minute

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