Welcome back, Sujit Kumar Mishra

Explain the difference between JDK, JRE and JVM? 

1: JVM (Java Virtual Machine)

It is like a translator that runs Java programs. It takes the compiled Java code (bytecode) and converts it into machine code so your computer can understand and execute it.

2: JRE (Java Runtime Environment)

It is a package that gives you everything you need to run Java programs, including the JVM and some libraries, but it does not have tools for developing Java programs.

3: JDK (Java Development Kit)

It is a complete package for Java developers. It includes the JRE (so you can run programs), the JVM, and also tools to write, compile, and debug Java code.

In short:

JVM = Runs Java programs

JRE = Runs Java programs + libraries

JDK = Develops and runs Java programs (JRE + development tools)