Exact difference between Compiler and Interpreter? [duplicate]

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How does an interpreter/compiler work开发者_高级运维

Hi what is the exact difference between the Compiler and interpreter ?

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From Wikipedia:

• Compiler: A compiler is a computer program (or set of programs) that transforms source code written in a programming language (the source language) into another computer language (the target language, often having a binary form known as object code).
• Interpreter: An interpreted language is a programming language in which programs are 'indirectly' executed ("interpreted") by an interpreter program. This can be contrasted with a compiled language which is converted into machine code and then 'directly' executed by the host CPU.

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Compiler

A compiler generates machine-dependent assembly code which can then be assembled and linked to into the appropriate machine op-codes to allow the program to execute. This process can only be run at build time.

Interpreter

An interpreter generates machine-independent code which can then be on-the-fly compiled to assembly code (e.g. Just-in-Time compilation). This process can be executed at build time and / or run time.

Hope this helps!