JDK, JRE, and JVM in Java

1) What is JDK in Java ?

• JDK Stands for Java Development Tool Kit.
• JDK is a superset of JRE
• JDK contains everything that JRE has along with development tools for developing, debugging, and monitoring Java applications
• When you Develop Java applications. You need JDK .

2) What is JRE in Java ?

• It stands for Java Runtime Environment.
• JRE implementation of JVM, it provides a runtime environment which execute the java programs.
• JRE contains a set of libraries + other files that JVM uses at runtime.

3) What is JVM in Java ?

• It stands for Java Virtual Machine.
• JVM provides a run time environment in which java bytecode can be executed..
• JVM is platform dependent that means available for many hardware and software platforms