Blog of Vincent VAUBAN

[POLL] What’s the main reason you contribute to Open Source? REP/ LEARN/ IMPACT/ DEPENDS

2025年10月29日 · poll,open source

Here we are—mid-Hacktoberfest 2025! 🎃🍂 Whether you’re shipping your first PR or mentoring...

JAVA GARBAGE COLLECTORS — THE OPTIONS, IN PLAIN ENGLISH

2025年10月26日 · java,techlead,programmmer,devops,slides

TL;DR: Different apps need different GCs. Start with G1, go ZGC/Shenandoah for ultra-low pauses,...

💡🧩 Know your Java classes about Handling Date, Time Values

2025年10月26日 · java,crosswords

It’s Friday crosswords time! A tiny puzzle to help you better remember core Java time APIs — and...

🧩📦 DATA CLUMPS: SPOT IT, FIX IT

2025年10月26日 · code-smell,cleancode

🔸 TL;DR ▪️ Data Clumps = the same group of fields (e.g., street, city, zip, or startDate,...

✨☕ JAVA GENERICS — PRACTICAL RULES YOU’LL ACTUALLY USE

2025年10月25日 · java,programmmer

Your learning drop for cleaner APIs and safer code. Below are 7 field-tested habits (with tiny...

🚀 Crack coding interview: Word frequencies

2025年10月25日 · java,programmmer,coding,interview

Design a method to find how many times a given word appears in an article. Below is a clean,...

🍃🎓 SPRING CERTIFICATION — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod4

2025年10月25日 · slides,springboot,spring,java,certification

🔸 WHY SPRING CERTIFICATION IS A GREAT ASSET TODAY ▪️ Validates real-world, production-ready...

💻📚 SIMPLICITY FIRST: WRITE CODE HUMANS CAN READ

2025年10月25日 · cleancode

🔸 TL;DR ▪️ Indent consistently, name things clearly, comment why (not what), don’t keep dead...

🚦📡 LEVELS OF RESTFUL API (RICHARDSON MATURITY MODEL)

2025年10月25日 · rest,architecture,programmmer,techlead

🔸 TL;DR REST maturity grows from one RPC-style endpoint ➜ named resources ➜ proper HTTP methods...

🐳🔒 DISTROLESS DOCKER IMAGES — SMALLER, SAFER, FASTER

2025年10月25日 · devops

🔸 TL;DR Distroless images strip out shells and package managers, leaving only your app and its...

☕🎓 JAVA 21 OCP episod4 — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀

2025年10月25日 · java21,java,ocp,certification,slides

☕🎓 JAVA 21 OCP — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 🔸 WHY JAVA CERTIFICATION IS A...

📝 COMMENTS IN THE MIDDLE? TIME TO REFACTOR.

2025年10月25日 · cleancode,quote

If you need a comment to explain a chunk of logic inside a method, that logic probably deserves...

☕🤝🐍 JAVA & PYTHON in AI: NOT ENMITY, BUT FRATERNITY 🤖

2025年10月19日 · java,python,AI

I’m working on a Data/AI team in my current engagement, and we often discuss how tech stacks...

🤖🕶️ SHADOW AI: WHAT’S HAPPENING BEHIND YOUR FIREWALL

2025年10月19日 · AI,security

🔸 TL;DR ▪️ Shadow AI = employees using unapproved AI tools or prompts on the side. ▪️ It...

[VV135] The Java Fullstack Newsletter

2025年10月19日 · java,fullstack,newsletter

🍁 Hello dear Fullstackers! We’re right in the heart of Hacktoberfest — the perfect moment to...

🧩🔒 #fridayGame SEALED CLASSES CROSSWORD FOR JAVA

2025年10月19日 · crosswords,sealed,java,java21

Here is the crossword link: https://crosswordlabs.com/view/sealed-5 🔸 CONTEXT Boost your...

⚡️🧪 REACTIVE PROGRAMMING IN QUARKUS VS SPRING (WHAT CHANGES, WHAT DOESN’T)

2025年10月19日 · springboot,quarkus,java,spring,programmmer

🔸 TL;DR Quarkus leans on Mutiny (Uni/Multi) over Vert.x for a lean, GraalVM-friendly reactive...

🧩➕ CODING CRACK: SWAP TWO NUMBERS IN PLACE WITH SUM/DIFF (NO TEMP VAR)

2025年10月19日 · java,coding,interview

Problem: “Write a function to swap two numbers in place (without temporary variables).” We’ll...

Java is everywhere AI needs to be.

2025年10月19日 · quote,java,AI

🤖 Java is already where AI lives. From high-throughput microservices to data pipelines,...

🍃🎓 SPRING CERTIFICATION — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 [episod3]

2025年10月19日 · springboot,spring,certification,vcp,java

🔸 WHY SPRING CERTIFICATION IS A GREAT ASSET TODAY ▪️ Validates real-world, production-ready...

All Categories - Blog of Vincent VAUBAN

[POLL] What’s the main reason you contribute to Open Source? REP/ LEARN/ IMPACT/ DEPENDS

JAVA GARBAGE COLLECTORS — THE OPTIONS, IN PLAIN ENGLISH

💡🧩 Know your Java classes about Handling Date, Time Values

🧩📦 DATA CLUMPS: SPOT IT, FIX IT

✨☕ JAVA GENERICS — PRACTICAL RULES YOU’LL ACTUALLY USE

🚀 Crack coding interview: Word frequencies

🍃🎓 SPRING CERTIFICATION — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 episod4

💻📚 SIMPLICITY FIRST: WRITE CODE HUMANS CAN READ

🚦📡 LEVELS OF RESTFUL API (RICHARDSON MATURITY MODEL)

🐳🔒 DISTROLESS DOCKER IMAGES — SMALLER, SAFER, FASTER

☕🎓 JAVA 21 OCP episod4 — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀

📝 COMMENTS IN THE MIDDLE? TIME TO REFACTOR.

☕🤝🐍 JAVA & PYTHON in AI: NOT ENMITY, BUT FRATERNITY 🤖

🤖🕶️ SHADOW AI: WHAT’S HAPPENING BEHIND YOUR FIREWALL

[VV135] The Java Fullstack Newsletter

🧩🔒 #fridayGame SEALED CLASSES CROSSWORD FOR JAVA

⚡️🧪 REACTIVE PROGRAMMING IN QUARKUS VS SPRING (WHAT CHANGES, WHAT DOESN’T)

🧩➕ CODING CRACK: SWAP TWO NUMBERS IN PLACE WITH SUM/DIFF (NO TEMP VAR)

Java is everywhere AI needs to be.

🍃🎓 SPRING CERTIFICATION — TEST YOURSELF (3 QUESTIONS IN THE CAROUSEL) 🚀 [episod3]

☕🍃🔍

[POLL] What’s the main reason you contribute to Open Source? REP/ LEARN/ IMPACT/ DEPENDS

JAVA GARBAGE COLLECTORS — THE OPTIONS, IN PLAIN ENGLISH

💡🧩 Know your Java classes about Handling Date, Time Values