How can I find which version of Java I am running?

OUTPUT

$ java -version
java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

Questions answered by this page:

What Version of Java Are You Running? How to check your Java Version? What is my java version?