“Hello, World!” is frequently used by developers learning a new programming language, as the output of their first program. Such program typically only prints this phrase to the screen; it is used to test the tools and process needed to produce a program for a given platform.

By metonymy, “Hello, World!” names the program which outputs the phrase. The original “Hello, World!” is attributed to Brian Kernighan, who used it as an example in computer programming books he authored.

Here is an example in C language:

#include <stdio.h>

int main( ) {
    printf("Hello, World!\n");
}

“Hello, World!”, then :wink: