22 articles in this category
The JDK builds Java code, the JRE runs it, and the JVM executes it. Here is what each one contains, how they nest inside each other, why the JVM is the platform-dependent part, and which one you actually need to install.
Redis turns repeated database reads into memory reads, and Spring Boot wires it up with three annotations. This guide runs Redis in Docker, configures the cache manager, caches a real service method, and covers the four mistakes that quietly stop a Spring Boot Redis cache from working.
For Java backend developers, ChatGPT acts like a virtual coding assistant that helps generate code, debug applications, optimize APIs, improve architecture, write documentation, and accelerate development speed.
How to use @PathVariable in Spring Boot, with runnable examples covering multiple variables, optional values, regex patterns, type conversion errors, validation, and when to use @RequestParam instead.
The 5 best Java backend development courses in 2026, compared on depth beyond syntax, real projects, interview readiness, and honest cost. Includes who each course suits and what it leaves out.
This is the most comprehensive guide to Java backend development online. You will learn Java for the backend from scratch to an advanced level, and build a real API along the way.