Scanf() :

This function is usually used as an input statement.

The format string must be a text enclosed in double quotes. It contains the information for interpreting the entire data for connecting it into internal representation in memory.
Example: integer (%d) , float (%f) , character (%c) or string (%s).
The argument list contains a list of variables each preceded by the address list and separated by comma.
The number of argument is not fixed; however corresponding to each argument there should be a format specifier. Inside the format string the number of argument should tally with the number of format specifier.

Syntax :
scanf(“format string”, argument list);

C – SCANF() EXAMPLE PROGRAM :

if i is an integer and j is a floating point number, to input these two numbers we may use
scanf(“%d%f”, &i, &j);

#include<stdio.h>
#include<conio.h>
int main()
{
char  a;
int     b;
float  c;
double d;
clrscr();
printf(“Enter a character \n”);
scanf(“%c”,&a);
printf(“Enter an Integer \n”);
scanf(“%d”,&b);
printf(“Enter a SP float no: \n”);
scanf(“%f”,&c);
printf(“Enter a DP float no : \n”);
scanf(“%if”,&d);
getch();
return 0;
}

#include<stdio.h>

#include<conio.h>

int main()

{

char a;

int b;

float c;

double d;

clrscr();

printf(“Enter a character \n”);

scanf(“%c”,&a);

printf(“Enter an Integer \n”);

scanf(“%d”,&b);

printf(“Enter a SP float no: \n”);

scanf(“%f”,&c);

printf(“Enter a DP float no : \n”);

scanf(“%if”,&d);

getch();

return 0;

}

Output :

Enter a character

X

Enter an integer

10

Enter a SP float no

3.140000

Enter a DP float no

3.1400000e+10

Enter a character

Enter an integer

Enter a SP float no

3.140000

Enter a DP float no

3.1400000e+10

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