JDK is a software development environment used for developing Java applications and applets., JRE is an installation package that provides an environment to only run (not develop) the java program (or application) onto your machine., JVM is a very important part because it is contained or inbuilt in both. Whatever Java program you run using them goes into JVM and JVM is responsible for executing the java program line by line., JVM is known as the Interpreter., Three important components of JVM are specification, implementation and runtime instance., JRE has 6 component:  deployment technologies, user interface toolkits, integration libraries, other base libraries, lang and other util base libraries and JVM,

JDK, JRE and JVM

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