Input-Output in C programming

Input-Output in C

In this post, we will learn how to take an input from terminal and display/print on the terminal. We take a input from the terminal to fill dynamic value in a variable.

Introduction

In c programming, we scanf() function to take an input from terminal and printf() function to displace value of a variable on the terminal.

Integer Input-Output in C program

In C programming we use scanf() function with parameters %d and &variable_name to take an integer input from the terminal and printf() function to print the variable value on the terminal.

 #include <stdio.h>  
 int main()  
 {  
      int variable;  
      scanf("%d", &variable);  
      printf("%d", variable);  
      return 0;  
 }  

In above example,

int variable; means decler a variable with name variable you can keep any name
scanf("%d", &variable); means take a input from termial-keyboard and strore in variable variable 
printf("%d", variable); means print value of variable variable on terminal

Float Input-Output in C program

We use %f at the place for %d in order to store float variable in c programming language

 #include <stdio.h>  
 int main()  
 {  
      float variable;  
      scanf("%f", &variable);  
      printf("%f", variable);  
      return 0; 
 }  

In above example,

float variable; means decler a variable with name variable you can keep any name
scanf("%f", &variable); means take a input from termial-keyboard and strore in variable variable 
printf("%f", variable); means print value of variable variable on terminal

Character Input-Output in C program 

We use %c at the place for %d in order to store float variable in c programming language

 #include <stdio.h>  
 int main()  
 {  
      char variable;  
      scanf("%c", &variable);  
      printf("%c", variable);  
      return 0;  
 }  

In above example,

char variable; means decler a variable with name variable you can keep any name
scanf("%c", &variable); means take a input from termial-keyboard and strore in variable variable 
printf("%c", variable); means print value of variable variable on terminal

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