Manivannan Palanichamy

• Jul 31st, 2006

 

JVM  (java.exe) -- The interpreter which interpretes the byte code of the class and executes .

JRE - A JRE is a subset of JDK. It has only the JVM (along with minimal libraries), but doesnt include the compiller (javac) and other  development tools like jdb, javadoc and etc. A JRE can be redistributed along with your application. Its legal as per the Java license.

JDK - JDK has one or more JRE along with other development tools like jdb,javac, javap and etc. It includes the core libraries with the necessary jars. Its not redistributable - as per the Java license.