scanf() function in C code example

Example 1: c scanf

scanf("%d",&variable);

/*
% is a format specifier

%d or %i 		for int
%ld or %li for 	long int
%f for 			float
%lf for 		double
%c for 			char
%s for 			string
*/

Example 2: scanf in c

#include <stdio.h>

int main () {
   scanf("%s", str);
   printf("%s"str);
   scanf("%d", int);
   printf("%d"int);
   return(0);
}

Example 3: sacnf in c

/* scanf example */
#include <stdio.h>

int main ()
{
  char str [80];
  int i;

  printf ("Enter your family name: ");
  scanf ("%79s",str);  
  printf ("Enter your age: ");
  scanf ("%d",&i);
  printf ("Mr. %s , %d years old.\n",str,i);
  printf ("Enter a hexadecimal number: ");
  scanf ("%x",&i);
  printf ("You have entered %#x (%d).\n",i,i);
  
  return 0;
}