A Simple 'C' Program with step by step demonstration

A Simple 'C' program:

#include<stdio.h>

#include<conio.h>

void main()

{

clrscr();

printf("Hello All");

printf("\nWelcome to C programming");

getch();

}

Step-by-step demonstration of the above program:

• #include   - This is the pre processor directive and it attached the given header file with our program during compilation time.
• main() - It indicates that the program has begun now.
• {....} - It indicates a block.
• clrscr() - It is a library function , defined inside 'conio' header file which clears the screen at run time.
• printf() - This is also a library function defined inside 'stdio' header file which prints the given message on the output window.
• \n - This is known as line feed character and it breaks the message into separate lines.
• getch() - This is also a library function which pauses our output.
• ; - This symbol (semi-colon) is known as statement terminator and it indicates the compiler that the statement is end now.