Day 20: RLHF — Why LLMs Need Human Feedback to Improve
Learn what RLHF (Reinforcement Learning from Human Feedback) is, how it makes AI models like ChatGPT more helpful, and why developers… Continue reading on Javarevisited…
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30 Days of AI + Java Tips
Learn AI one day at a time — from prompts to embeddings, fine-tuning to vector search — designed for Java backend developers stepping into… Continue…
Why NGINX is the Silent Traffic Ninja Your Website Desperately Needs
Let’s be honest: if the internet were a bustling train station, most traditional servers like Apache would be the flustered ticket agent… Continue reading on…
Goodbye, Stack Overflow — and thank you.
There was a time when hitting a wall in your code felt personal. You’d stare at your screen, debugger open, cursor blinking… and nothing… Continue…
1Z0–830 Sample Questions for Java SE 21 Developer Certification Exam (with Resources)
10 1Z0–830 Practice questions for Java developers with resources like books, courses and practice tests. Hello guys, a lot of you emailed me to share sample…
How to Call One Constructor from Another in Java (Made Easy)
Constructors are special methods that run when you create an object. But what if you have more than one constructor in a class? Continue reading…
Why Everyone’s Talking About Kafka And How It Can Save Your App
Imagine you’re building an e-commerce app with microservices like: Continue reading on Javarevisited » This post first appeared on Read More
Don’t Repeat These 5 Costly Spring Boot Mistakes I Made for Years
“We gain real experience when things don’t go as planned — like fixing a bug at 3 AM.” Continue reading on Javarevisited » This post first appeared…
Can You Inject a Prototype Bean Into a Singleton in Spring? | Asked in Every Java Interview
Can I inject a prototype bean into a singleton bean? The short answer is: yes, but not in the way you might expect. Continue reading…
10 Books Every Software Engineer Should Read to Become an AI Engineer in 2025
AI Engineers are also Software Engineers and you can read these book to become an AI Engineer in 2025 Hello guys, Artificial Intelligence is no longer…
“Wait, So What Is an API Gateway?”
My articles are open to everyone; non-member readers can read the full article by clicking this link Continue reading on Javarevisited » This post first…
Understanding the Magic of GenAI: the “Next Word Predictor”
Photo by Logan Voss on Unsplash In the past few years, we’ve witnessed the rapid evolution of AI — or more aptly, the evolution of “THE NEXT WORD…
How To Do Well in System Design Interviews?
System design interviews can be intimidating, especially when you’re asked to design a scalable, high-performing, and reliable system… Continue reading on Javarevisited » This post…
Microservices Communication: Synchronous and Asynchronous Explained with Beautiful Diagrams
How do microservices communicate with each other? We’ll explore the two main ways services talk: synchronous and asynchronous. Continue reading on Javarevisited » This post…
Can You Catch an Error in Java | Tricky Java Interview Questions — Part 17
Today’s question explores Java’s exception mechanism , specifically around the often-confused class called Error: Can you catch an Error Continue reading on Javarevisited » This post…