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Learn Java Java is one of the world's most widely used programming languages. Java is free to use, and runs on all platforms.
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 high-level, object-oriented programming language used to build web apps, mobile applications, and enterprise software systems. Java is a platform-independent language, which means code written in Java can run on any device that supports the Java Virtual Machine (JVM).
Java is a 30-year success story, made possible because its development consistently aligned with users' needs. In its early days, the platform required new features quickly, but over time, minimizing code breakage while carefully evolving the platform became essential.
Create your first Java application 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.
Thanks to the great Java community around Visual Studio Code, you can use a wide range of extensions to enhance your Java development experience. Tip: To learn how to install and manage your extensions, refer to the general VS Code extension documentation.
