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Here we will discuss Input / Output function in C language. C provides two common function for Input / Output.

  • Scanner
  • Printer

Scanner : This function us used to input values to the keyboard at a runtime.

Syntax : Scanf(“Control string “, &variable);

control string indicates the format of value inputted to the keyboard also called format specifiers.

Following are common formal Specifier used in C:

%d —> int

%s —> string

%f —> float

%h —> short int

%c —> char

%u —> unsigned int /address

Example : int a;


printf : This function is used to print the value variable in the string.

Example: printf(“Hellow world”);

Question : Write a Program to input tow number and find the sum in C ?

#include <stdio.h>

#include <conio.h>



int a,b,c;

printf(“Enter two no”);

scanf(“%d%d, &a,&b);




Question : write a program to input the employee salary and calculate 40% bonus?

#include <stdio.h>

#include <conio.h>



int ES,BS,NS;

printf(“Enter employe salary”)







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Author: Raiyan

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My Name is Raiyan. I am a Professional Application Developer and a Blogger.
I started this website to Share my Knowledge. Here I provide all my knowledge whatever I earned till now.

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