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Tutorials, deep-dives, and insights on Java, DSA, System Design, AI, and more.
Skip the boilerplate. Learn how Spring Data MongoDB turns your domain classes into a fully-functional persistence layer in minutes.
Cache-aside, write-through, write-behind — different caching strategies have very different consistency guarantees. Know when to use each one.
DI is one of the most misunderstood patterns in software. Here's a clear explanation — from the problem it solves to how Spring's IoC container works under the hood.
Big O is how you talk about algorithm efficiency in interviews. Here's what each notation means and how to analyse code on the spot.