It is a programming language and computing platform first released by Sun Microsystems in 1995. Many cross-platform applications also require Java to operate properly.
In addition, two key deployment technologies are part of the JRE: Java Plug-in, which Enables Applets to Run in Popular Browsers and Web Start, which deploys standalone applications over a network.
It provides the libraries, the Java Virtual Machine, and other components to run applets and applications written in the Java programming language.
