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API Design

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Post category:System Design
Reading time:19 mins read
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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…

Java Spring Boot 1M req/sec

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Post category:Java System Design
Reading time:6 mins read
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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 main

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Post category:Java
Reading time:7 mins read
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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…

Java Constructor

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Post category:Java
Reading time:15 mins read
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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…

Java Libraries

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Post category:Java
Reading time:19 mins read
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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…

java features

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Post category:Java
Reading time:13 mins read
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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…

System Design Questions

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Post category:System Design
Reading time:2 mins read
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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…

Back-of-the-envelope calculation for system design

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Post category:System Design
Reading time:15 mins read
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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…

Fault Metrics

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Post category:System Design
Reading time:5 mins read
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Fault metrics provide quantifiable data to assess and track the reliability and stability of systems. Some key fault metrics include MTTF (Mean Time To Failure), MTBF (Mean Time Between Failures), and MTTR…

Network Performance Metrics

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Post category:System Design
Reading time:6 mins read
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Network performance metrics are quantitative measurements used to evaluate the health, speed, reliability, and efficiency of a network. Key metrics include bandwidth, latency, throughput, jitter, packet loss, and uptime, which help identify…