JVM (Java
Virtual Machine)
JVM
is a virtual machine which work on top of your operating system to provide a
recommended environment for your compiled Java code. JVM only works with
bytecode. Hence you need to compile your Java application(.java) so that it can
be converted to bytecode format (also known as the .class file). Which
then will be used by JVM to run application. JVM only provide the environment
It needs the Java code library to run applications.
JRE
(Java Run time Environment)
JRE contains everything required to run Java
application which has already been compiled. It doesn’t contain the code
library required to develop Java application.
JDK
(Java Development Kit)
JDK contains everything that
will be required to develop and run Java application.
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