Printf Function

printf function is used to print information on screen. Note that c programming is a case sensitive. so you can not write "Printf".It is included in "stdio.h" Header file.

some examples if printf function:

printf(“This is printf function”);

printf(“\nI am a c programmer”);

Example program for printf:

#include<stdio.h>

#include<conio.h>

main()

{

         clrscr();

         printf("This is because of printf function");

         getch();

}

Scanf function

scanf function is used to gain data from user and store it into any variable.Note that Scanf(); is not allowed because c programming is a case-sensitive language.

Some examples of scanf function:

scanf(“%d”,&a);           // %d is data type of variable and a is the name of variable.

scanf(“%c”,&c);           // %c is a character datatype and c is a variable.

Example for scanf function.

#include<stdio.h>

#include<conio.h>

main()

{

            int a;

            clrscr();

            printf("Enter Number: ");

            scanf("%d",&a);

            printf("\nYou have entered %d",a);

            getch();

}