How to Check Java Version and Update It to the Latest Version

URL to Check Java Version & Update: java.com/en/download/installed.jsp

A Java virtual machine is a program which executes certain other programs, namely those containing Java bytecode instructions. JVMs are most often implemented to run on an existing operating system, but can also be implemented to run directly on hardware. A JVM provides a run-time environment in which Java bytecode can be executed, enabling features such as automated exception handling, which provides root-cause debugging information for every software error (exception). A JVM is distributed along with Java Class Library, a set of standard class libraries (in Java bytecode) that implement the Java application programming interface (API). These libraries, bundled together with the JVM, form the Java Runtime Environment (JRE).