How to install Java on your computer To run Java apps, open JAR files or compile some source code into bytecode you’ll need to install Java. To download and install Java on Windows, MacOS or Ubuntu, ...

Take advantage of Docker to ease Java development. Learn how to update a running Java codebase (without restarting the container) and to debug into a remotely running containerized Java app.

Both languages are open-source, which means they’re free and other people can add to the code libraries. Java is platform-independent and is compiled to bytecode with Java Virtual Machine, or JVM.

A Java compiler takes a text file and compiles it into a platform-independent Java file, meaning the compiled code can run on any OS. Learn how it works.