Hello, world!

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A "Hello, world!" program is a trivial program which outputs a static string of text[note 1], usually

Hello, world!

This program is often the first one written in a new esoteric programming language, to demonstrate output. It is a popular problem.

The program comes from the first example program in the classic K&R C manual. Note that the K&R version was in all lowercase and lacked an exclamation mark.

See also


  1. If the static string is not "Hello world", then the problem may be more often called "kolmogorov complexity" problem.

External resources