Java Runtime Environment Oracle - (Freeware)

The Java Runtime Environment (JRE) contains everything your computer needs in order to run Java applications or load Java applets in your browser. The latest Java Plug-In technology comes with improved reliability, enhanced security, support for multiple JRE versions, and improved communication between Java and the JavaScript engine.

Java technology is an object-oriented, platform-independent, multithreaded programming environment. It is the foundation for Web and networked services, applications, platform-independent desktops, robotics, and other embedded devices.