Answer Posted / ranganathkini

JDK or the Java Development Kit is a set of a Java compiler,
a Java interpreter, developer tools, Java API libraries,
documentation which can be used by Java developers to
develop Java-based applications.

JRE or the Java Runtime Environment is a minimum set that
includes a Java interpreter, Java API libraries, Java
browser plug-in, which make up the minimum environment to
execute Java-based applications.

The JVM or Java Virtual Machine is the core of the Java
platform and is a part of both the JDK and JRE that
translates Java bytecodes and executes them as native code
on the client machine.

JDK includes a JRE as as subset.

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