Loading…
Loading…
Tutorials, deep-dives, and insights on Java, DSA, System Design, AI, and more.
Spring Boot 3 ships with Java 17 baseline, native AOT compilation, and major security upgrades. Here's everything you need to know before migrating.
Skip the boilerplate. Learn how Spring Data MongoDB turns your domain classes into a fully-functional persistence layer in minutes.
Virtual threads, record patterns, sequenced collections — Java 21 is a landmark LTS release. Here's what to adopt now and what to watch for in interviews.
Most engineers fail system design interviews not because they lack knowledge, but because they lack a framework. Here's the repeatable 6-step approach that works.
Choosing between SQL and NoSQL is one of the most common system design questions. Here's a principled framework — not just "it depends".
Cache-aside, write-through, write-behind — different caching strategies have very different consistency guarantees. Know when to use each one.
volatile, synchronized, ReentrantLock, happens-before — these concepts trip up even experienced engineers. Here's a clear explanation of each.
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.
Instead of memorising 500 LeetCode solutions, learn 14 patterns. Recognise the pattern and you can derive the solution from first principles.
CAP theorem says you can only pick 2 of 3 properties. But what does that mean in practice? And which systems are CP vs AP vs CA?
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.
Saga, circuit breaker, API gateway, event sourcing — the design patterns that make microservices work at scale and that interviewers ask about.