Non-Static Instance Variables In Java, a non‑static variable is declared inside a class but outside any method, without using the static keyword. Each object o...

!Cover image for 🐌 “My Spring Boot API Became Slow… Until I Learned Pagination & Sorting”https://media2.dev.to/dynamic/image/width=1000,height=420,fit=cover,gr...

What is a Variable in Java? A variable is a container used to store data values. Types of Variables in Java Local Variables Example: java class Test { void dis...

Introduction If you develop systems using Java with JPA, you have probably faced the need to execute queries that return only a subset of attributes from a giv...

Introduction As backend engineers we often treat concurrency as a black box: we write go func{} or spawn and expect magic. Understanding how the runtime schedu...

'TL;DR The answer is in the title – use Document.

Introduction I work as a Backend Developer Java/Spring and I’m also a university student studying Museology. While examining the physical security layers of mo...

Introduction 🚀 Have you ever called a REST API and thought: > “Why is this request blocking until everything finishes?” Now imagine sending an email, generati...

What is JDK Java Development Kit? The JDK provides the tools needed to write and develop Java programs. When you write a program and compile it, the JDK uses t...

SimpleEventBus Implementation java import java.util.List; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.CopyOnWriteArrayList; // C...

Introduction Memory efficiency is a critical aspect of modern software engineering. Poor memory management leads to slow performance, crashes, scalability issu...

Conversión de HTML reducido a Markdown con un árbol sintáctico En uno de mis proyectos laterales o “mascota” escribí un pequeño parser para un HTML reducido, p...