Printing Hello World In C Using Printf Statement

Hay!
In this post we will teach you the first program that every new learner of C language should execute.
We will print "Hello World". For this we will use printf statement which is a library function whose definition is in the stdio.h library file. So lets start.

Syntax:

printf("Any Word,letter or phrase");

now lets try a program:

Program:

#include<stdio.h>

#include<conio.h>

void main(void)

{

printf("Hello World");

getch();

}

in this program i have used one new library function which is getch(); whose definition is in conio.h

which stands for console input output function. It is used to show output of program in console.

Output:

Other Useful information:

printf("hello world how are you");

it will print the whole sentence in one line. if you want to write "how are you" in next line or want to give space equal to 1 tab then you have to use the following escape sequences:

\n (newline)

\t (tab)

\v (vertical tab)

\f (new page)

\b (backspace)

\r (carriage return)

let me try one of them in program:

#include<stdio.h>

#include<conio.h>

void main(void)

{

clrscr() 

printf("Hello World \n How Are You");

getch();

}

Note: I have used clrscr(); statement to clear the old output.

Output:

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