C - scanf
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C - scanf() Function - Definition and Usage
- In C -Language, scanf() is a predefined function in "stdio.h" header file. It can be used to read the input value from the keyword.
- 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).
Format specifier :
| Format specifier | Type of value |
|---|---|
| %d | Integer |
| %f | Float |
| %lf | Double |
| %c | Single character |
| %s | String |
| %u | Unsigned int |
| %ld | Long int |
| %lf | Long double |
C Syntax
scanf("format specifiers",&value1,&value2,.....);Sample coding -C - Scanf Function
#include<stdio.h>
#include<conio.h>
void main()
{
int x;
float y;
clrscr();
printf("Enter any two numbers: ");
scanf("%d %f",&x,&y);
printf("%d %f",x,y);
getch();
}C Code - Explanation
- In this example, “int x” specifies the integer value for the variable x.
- Here, “float y” specifies the float value of the variable y.
- Here scanf("%d %f",&x,&y) is being used to read the integer & float data from keyboard.
- Here %d is an integer value of the variable x.
- And %f is a float value of the variable y.
Sample Output - Programming Examples
- Here in this output “Enter any two numbers: “ is represented in printf statement.
- Here in this output we are entering the values 5 and 10.
- Here in this output the entered values 5 and 10 are processed in the console window.
- Here 5 is represented as integer value and 10.000000 as float value.