Scanf in C
About Scanf
Scanf is a kind of function which stands for Scan Formatted String. This will help to understand the data or read the data from standard input and write that result in the argument with function after taking input from standard input.
Working of Scanf :
The main functionality of scanf function is to read the inputs from some standard inputs .
Important Note :
- Scanf reads the data from standard input (stdin).
- Scanf accepts numeric, strings or character from standard input.
Declaration of Scanf:
int scanf(const char * format......)
Example 1
Write a program to implement the scanf function.
Code
Run
#include<stdio.h>
int main ()
{
int a, b;
printf ("Number 1 = ");
scanf ("%d", &a);
printf ("Number 2 = ");
scanf ("%d", &b);
printf ("A = %d\n", a);
printf ("B = %d\n", b);
return 0;
}
Output
Number 1 = 6 Number 2 = 8 A = 6 B = 8
Example 2
Write a program by using scanf function.
Code
Run
#include<stdio.h>
int main()
{
float number1;
double number2;
printf("Enter first number = ");
scanf("%f", &number1);
printf("Enter second number = ");
scanf("%lf", &number2);
printf("number 1 = %f\n", number1);
printf("number 2 = %lf", number2);
return 0;
}
Output
Enter first number = 4 Enter second number = 5 number 1 = 4.000000 number 2 = 5.000000
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