Hello world program in C programming language

Hello world program in C programming language

C “Hello world”program

In this tutorial, we will discuss Hello world program in C programming language

Hello, word program is a very simple program for beginners in C language with few lines of coding and is easy to understand.

If you want to run this program on your system, you must have a text editor and compiler of C language.

Program display hello world

#include <stdio.h>//header file for stranded input output 


int main()//main method in C language
{
    printf("Hello world!\n");//display statements
    getch();
    return 0;//return statements
}

When the above code is executed, it produces the following results:

Hello world!

Part of this program

We can divide the program of 5 section for easy to understand the program flow

 

• Header file
• Main function
• Some pre-defined functions
• return statement

Header file

#include<stdio.h> is a header file for standard input and output library functions. The print() and scanf() pre-defined functions are defined in this header file

 

Main function

void main() – This is the main function in C Language. the void is a return statement and void never returns a value. main() is the main method and it indicates the start of execution of the program. So main is the Entry point to the every C program.

 

Some pre-defined functions

getch()- used to clean the screen

 

Return statements

return 0; – This is the ending point of every C Program

 

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