Java Programming Language

Enterprise-grade. Write once, run anywhere.

Overview

Deep-dive Java tutorials covering modern Java 21+ features, Spring framework, concurrent programming, JVM internals, and enterprise architecture patterns.

Current stable version
21 LTS
First released
1995
Programming paradigms
Object-Oriented, Concurrent
Primary use cases
Enterprise, Android, Backend, Big Data

Java Tutorials

Intermediate

  • Java Records: Immutable Data Classes Without the Boilerplate

    A complete guide to Java records (Java 16+). Learn the canonical constructor, compact constructors, validation, custom methods, generics, Jackson serialization, sealed interfaces, and when not to use records.