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Java Virtual Machine (JVM)

The JVM is heart of the Java Technology. It provides  "write once run anywhere".

JVM (Java Virtual Machine) is a program which provides all resource (like memory managements, networks access, hardware abstraction, etc) to an application at execution time.

JVM interprets and executes bytecode( generated by a Java compiler).

JVM is used to convert bytecode into machine language and executes it.