API Interview questions
REST APIs have become a cornerstone of modern software development, and understanding them is essential for acing any interview in this domain. Here is a carefully curated list of questions…
REST APIs have become a cornerstone of modern software development, and understanding them is essential for acing any interview in this domain. Here is a carefully curated list of questions…
These 16 DSA Patterns Did What 3000 LeetCode Problems Couldn't When I started with DSA, I did what everyone else does. I opened LeetCode. Picked Easy. Clicked "Run". Then "Submit".…
Designing a good API is a crucial step in building reliable, scalable, and developer-friendly software. A well-designed API acts as a contract between systems, making integration smooth and reducing the…
How I Optimized a Spring Boot Application to Handle 1M Requests/Second Scaling a Spring Boot application to handle 1 million requests per second might sound like an impossible feat, but…
Java Fundamentals: Inside the main() Method The lifecycle of a Class Execution in Java What Happens When We run a Java class with a main the JVM performs several critical steps, from…
Can Constructors Be final or static in Java? It's a common question, especially among beginners learning object-oriented programming. Short answer? Constructors cannot be final… If you've worked with Java for…
Stop Writing Your Own Code — Use These Java Libraries Instead In this article, we'll show you 15 things you should stop building from scratch — and which modern Java tools and libraries to…
Step 1: Use the Latest LTS Version Before diving into features, make sure you’re using a modern Java version. ✅ Recommendation: Use Java 17 or Java 21 (both are Long-Term Support versions). Why? Because these…
Download E-book : Collection of 21 Articles System Design Fundamentals - System Design Interview Roadmap. SECTION 1: FUNDAMENTALS (Articles 1-20 System Design Interviews: A Visual Roadmap The CAP Theorem Explained…
In system design interviews and real-world architecture planning, the ability to make quick, reasonably accurate estimations—often called "back-of-the-envelope" calculations—is an invaluable skill. These calculations help you determine whether a proposed…