Pre-sizing ArrayList
#JAVATIP Many developers don’t realize that most Java collections are backed by arrays and when you grow them dynamically, they silently perform resizing and copying,…
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Why Our Monolith Was Actually Better Than Microservices (Until It Wasn’t)
For many teams, the question is the same: Should we stay with a monolith or move to microservices? Continue reading on Javarevisited » This post…
Review — Is Educative a Good Place to Learn System Design in 2025?
Review — Is Educative a Good Place to Learn System Design in 2025? Is Educative.io a good place for learning System Design in 2025? Hello guys, System design interviews…
Formatting Numbers Should Be Easy
How to format numbers, currency, and percentages like a pro Continue reading on Javarevisited » This post first appeared on Read More
How I Streamed a 75GB CSV into SQL Without Killing My Laptop.
The Problem That Hit Me at Work Continue reading on Javarevisited » This post first appeared on Read More
What is a Heisenbu(er)g in Programming?…
Ghost bugs in code? Heisenbugs vanish when you chase them, mystery glitches that test patience and sharpen coding skills. Continue reading on Javarevisited » This…
The Day I Finally Learned What a Reverse Proxy Really Does
Photo by Mike Bird on Pexels It was my third month at Audible when I discovered that a reverse proxy was not just another mysterious box…
Docker is Slowly Killing DevOps Culture
The uncomfortable truth about containerization’s hidden costs Continue reading on Javarevisited » This post first appeared on Read More
The Backup That Wasn’t: A Database Recovery Nightmare
How our bulletproof backup strategy turned into a 72-hour disaster that nearly killed the company Continue reading on Javarevisited » This post first appeared on…
How We Cut Database Costs from $10k to $500/Month
The Invoice That Made Me Cry Continue reading on Javarevisited » This post first appeared on Read More
ByteByteGo or Udemy? Which Is Better for Learning System Design in 2025?
Is ByteByteGo a better place than Udemy for learning System Design in 2025? credit — ByteBytego Hello guys, System Design is one of the most important skills for…
The Day GitHub Copilot Made Me Unemployable
The interview started like any other. Casual chat, technical questions, a coding challenge. Standard stuff for a senior developer position… Continue reading on Javarevisited »…
Why We Finally Fired Lombok (and How MapStruct + Records Saved Us)
After years of relying on Lombok’s magic, our team hit the breaking point. Here’s how switching to MapStruct and Java Records gave us… Continue reading…
GDPR Demystified: A Complete Guide to the World’s Most Influential Data Protection Law
GDPR puts you in control: your data, your rights, your digital world where privacy meets power. Continue reading on Javarevisited » This post first appeared…
Spring Boot 3: What’s New and Top Interview Questions (2025 Edition)
Spring Boot 3 marks a significant evolution in the Spring ecosystem. It introduces modern Java support, native image capabilities, and… Continue reading on Javarevisited »…