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Read values in C- scanf() function
scanf() function() is used to read different types of values in C.
Syntax: scanf(“Control-string”, &arg1,&arg2,&arg3,……);
Control-string is the format to enter data. It has % sign followed by format specifier indicating the type of variable whose value is to be input .
&arg1,&arg2,&arg3,… refer to variables whose values is to be entered by user.
1. Input int data
Format Specifier: %d
Program to input int data |
#include<stdio.h> int main() { int n1; printf(“Enter int value=”); scanf(“%d”,&n1); printf(“\n Value=%d”,n1); return(0); } |
Output |
Enter int value=20 Value=20 |
2. Input short data
Format Specifier: %hd
Program to input short data |
#include<stdio.h> int main() { short m; printf(“Enter short value=”); scanf(“%hd”,&m); printf(“\nValue=%hd”,m); return(0); } |
Output |
Enter short value=25 Value=25 |
3. Input long data
Format Specifier: %ld
Program to input long data |
#include<stdio.h> int main() { long k; printf(“Enter long value=”); scanf(“%ld”,&k); printf(“\nValue=%ld”,k); return(0); } |
Output |
Enter a long value=1560 Value=1560 |
4. Input float data
Format Specifier: %f
Program to input float data |
#include<stdio.h> int main() { float no; printf(“Enter float value =”); scanf(“%f”,&no); printf(“\nValue=%f”,no); return(0); } |
Output |
Enter float value=2.55 Value=2.55 |
5. Input long double data
Format Specifier: %lf
Program to input long double data |
#include<stdio.h> int main() { long double n1; printf(“Enter long double value=”); scanf(“%lf”,&n1); printf(“Value=%lf”,n1); return(0); } |
Output |
Enter long double value=7015.544444 Value=7015.544444 |
6. Input char data
Format Specifier: %c
Program to input char type data |
#include<stdio.h> int main() { char choice; printf(“\nEnter your choice(Y/N)”); scanf(“%c”,&choice); printf(“\nchoice=%c”,choice); return(0); } |
Output |
Enter your choice(Y/N)Y choice=Y |
7. Input string data
Format Specifier: %s
Program to input string data |
#include<stdio.h> void main() { char sname[20]; printf(“\nEnter name=”); scanf(“%s”,sname); printf(“\nsname=%s”,sname); return(0); } |
Output |
Enter name=Aman sname=Aman |
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