Java runtime & enviroment

How get installed Java version ?

When you need to know what Java version is installed on your computer:

STEP 1: Run "cmd.exe" (on Windows)

To this cmd.exe console write:
H:\>java -version
Version of installed Java will be shown.
H:\>java -version
java version "1.6.0_32"
Java(TM) SE Runtime Environment (build 1.6.0_32-b05)
Java HotSpot(TM) Client VM (build 20.7-b02, mixed mode, sharing)