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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