Difference between JDK,JVM and JRE.

Difference between JDK,JVM and JRE

• For better understanding and details knowledge of JAVA it is necessary to know the difference between JVM ,JRE and JDK.

JVM

• It stands for Java Virtual Machine.
• JVM is the virtual machine that runs on actual machine and executes Java byte code.
• It is called a virtual machine because it doesn't physically exist.
• JVM provides a runtime environment in which Java bytecode can be executed.

JRE

• It stands for Java Runtime Environment.
• It provides runtime environment for a java program.
• It is a combination of JVM and set of libraries.
• The set of library is used by JVM at runtime.

JDK

• It stands for Java Development Kit.
• It contains all the library which is used to develop and run a java application.
• It is a combination of JRE and set of development tools.