Java Virtual Machine

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Java virtual machine

[¦jäv·ə ‚vər·chə·wəl mə′shēn]

(computer science)

An interpreter that translates Java bytecode into actual machine instructions in real time. Abbreviated JVM.

Java Virtual Machine

(language, architecture)

(JVM) A specification for software which interprets Java programs that have been compiled into byte-codes, and usually stored in a ".class" file. The JVM instruction set is stack-oriented, with variable instruction length. Unlike some other instruction sets, the JVM's supports object-oriented programming directly by including instructions for object method invocation (similar to subroutine call in other instruction sets).

The JVM itself is written in C and so can be ported to run on most platforms. It needs thread support and I/O (for dynamic class loading). The Java byte-code is independent of the platform.

There are also some hardware implementations of the JVM.

Specification.

Sun's Java chip.

This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

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