Our first program using scanf simply reads in an integer
and a double and prints them out.
The Program
/*********************************************
** File: scanf.c
** Author: S. Bogar
** Date: 8/25/99
** Section: 101
** SSN: 123-45-6789
** EMail: bogar@cs.umbc.edu
**
** This program demonstrates the use
** of the scanf function.
**********************************************/
#include <stdio.h>
int main ( )
{
int n ;
double x ;
printf("Enter an integer: ") ;
scanf("%d", &n) ;
printf("Enter a double: ") ;
scanf("%lf", &x) ;
printf("n = %d, x = %f\n", n, x) ;
return 0;
}
The Sample Run
linux3[84] % a.out
Enter an integer: 34
Enter a double: 342.123
n = 34, x = 342.123000
linux3[85] % !a
a.out
Enter an integer: 34
Enter a double: 34e12
n = 34, x = 34000000000000.000000
linux3[86] % !a
a.out
Enter an integer: 34e12
Enter a double: n = 34, x = 0.000000
linux3[87] % !a
a.out
Enter an integer: bbb bbb
Enter a double: n = 134518044, x = 0.000000
linux3[88] %