HTML
HTML Semantics: The Foundation of Accessible Web Design
When I first started building websites, my code was a sea of divs and spans. It worked, but it was a mess to maintain. The turning point was understanding…
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Advanced Java
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Career
Java Career Advice: What I Wish I Knew as a Junior
If I could go back and give myself advice, I’d say: don’t just learn the syntax. Learn the ecosystem. Knowing Java is great, but knowing Spring, Maven…
Databases
The Repository Pattern with Spring Data JPA
When I first started using Spring Data JPA, I was amazed that I could just create an interface extending `JpaRepository` and get CRUD methods for free. But…
Advanced Java
Using GraalVM for Native Images: Faster Startup, Lower Memory
The biggest criticism of Java in the serverless world has been startup time. A cold start of a Spring Boot app can take 20-30 seconds. GraalVM changes that…
Modern Java
The Power of Records in Java (and When to Use Them)
For years, Java developers complained about boilerplate. We had to write constructors, getters, equals, and hashCode for simple data carriers. Lombok fixed…
Best Practices
Clean Code: Writing Java That Humans Can Read
I’ve read Robert Martin’s *Clean Code* three times, and I still learn something new each time. The golden rule is that code is written for humans, not…
DevOps
Containerizing Java Apps: Docker and Kubernetes
The days of deploying a WAR file to a Tomcat instance on a virtual machine are fading. Most Java shops are moving to containers. I started Dockerizing my S…
Concurrency
Concurrency in Java: The `synchronized` Keyword and Beyond
Writing thread-safe code is hard. When I first learned about concurrency, I slapped `synchronized` on every method, thinking I was making everything safe…
Advanced Java
Understanding Java Annotations and Annotation Processing
Annotations in Java are like magic markers. They started as just metadata (`@Override`), but with frameworks like Spring and Lombok, they have become power…