Understand Differences of JVM, JRE and JDK

In this short video, I'd like to share about the differences between JVM, JRE and JDK in Java technology.
You will understand what JVM is, when it is used; what JRE is and when it is used; what JDK is and when it is used.
Understand the differences between JVM, JRE and JDK is very important for those whore are beginners in Java development.