Hello world in C language

1 ) Hello world in C language

Purpose of Hello world program may be to say hello to people or the users of your software or application.

#include <stdio.h>

int main()

{

  printf("Hello world\n");

  return 0;

}

Output of Program:

Hello world

 

2) Hello world program in c

We may store "hello world" in a character array as a string constant and then print it.

#include <stdio.h>

int main()

{

  char string[] = "Hello World";

  printf("%s\n", string);

  return 0;

}

Output of Program:

Hello world

3) Printing hello world indefinitely

#include <stdio.h>

#define TRUE 1

int main()

{

  while (TRUE)

  {

    printf("Hello World\n");

  }

  return 0;

}