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It’s not about being famous. It’s about building trust. I’m not looking for attention. I empower others and earn respect. 💪 1/ I build my career with Responsibility. I take ownership of the path. I deliver what moves us forward. 2/ I grow my Expertise. I don’t just code. I master...

🔸 TL;DR ▪️ I pushed a tiny Spring Boot endpoint that validates request bodies with networknt JSON Schema. ▪️ Send a POST with JSON → the lib checks it against a schema → on failure you get a clear list of offending fields/constraints. ▪️ Repo: https://github.com/vinny59200/checkJSON 🔸...

TL;DR Prefer interface types in your APIs and variables for flexibility and testability. Use a concrete class only when no suitable interface exists (e.g., BigInteger). Don’t hide needed features behind too-narrow interfaces. 🔸 GOOD USE / BAD USE ▪️ ✅ Good: List names = new ArrayList<>();...