Oracle Java is the #1 programming language and development platform. It reduces costs, shortens development timeframes, drives innovation, and improves application services.
Java is one of the world's most widely used programming languages. Learn Java with simple explanations, practical examples, exercises, and challenges that help you build real skills step by step.
Java (programming language) ... Java is a high-level, general-purpose, memory-safe, object-oriented programming language. It is intended to let programmers write once, run anywhere (WORA), [17] meaning that compiled Java code can run on all platforms that support Java without the need to recompile. [18]
Java is a platform-independent language, which means code written in Java can run on any device that supports the Java Virtual Machine (JVM). Syntax and structure are similar to C-based languages like C++ and C#.
The Oracle Java Platform extension helps you develop your Java project, and it is available via Visual Studio Code Marketplace. If no JDK is present in your system then the extension can set it up for you via its built-in JDK Downloader:
Out of pure spite, I've decided to make the world's shortest Java course to make it simple and straightforward for anyone to learn Java.
Last modified: 24 March 2026 In this tutorial, you will learn how to create, run, and package a simple Java application that prints Hello World to the system output. You will get acquainted with compact source files from Java 25 and learn how to convert them to regular classes. Along the way, you will become familiar with IntelliJ IDEA features for boosting your productivity as a developer ...