Format specifiers in C: It can be defined as the operators which are used in the association of printf function for printing the data that is referred by an object or a variable. And if you want you can retrieve the data that are stored in the variables and can print them on the console screen by implementing these format specifiers in a printf() function.
C Format Specifiers List
Here, we are displaying the list of format specifiers in C language.
| Format Specifier | Description |
|---|---|
| %d | Integer format specifier |
| %f | Float format specifier |
| %c | Character format specifier |
| %s | String format specifier |
| %u | Unsigned integer format specifier |
| %ld | Long Int format specifier |
Integer format Specifier (%d)
The %d format specifier is implemented for representing integer values. It is used with printf() functions for printing the integer value stored in the variable.
Syntax: printf(“%d”,<variable name>);
Example
#include <stdio.h>
int main()
{
char ch = 'A';
printf("%c\n", ch);
return 0;
}
Output: A
Float Format specifier (%f)
It is implemented within the printf() function for printing the fractional or floating value stored in the variable.
Syntax: printf(“%f”, <variable name>);
Example
#include <stdio.h>
int main()
{
float a = 0.0;
scanf("%f", &a);//input is 45.65
printf("%f\n", a);
return 0;
}
Output: 0.000000
Character Format Specifier (%c)
It is used for printing the character stored in a variable.
Syntax: printf(“%c”,<variable name>);
Example
#include <stdio.h>
int main()
{
char ch = 'A';
printf("%c\n", ch);
return 0;
}
Output: A
String format Specifier (%s)
It is used for representing string stored in a character array variable.
Syntax: printf(“%s”,<variable name>);
Example
#include <stdio.h>
int main()
{
char a[]="freshersnow";
printf("%s\n", a);
return 0;
}
Output: freshersnow
Unsigned Integer Format Specifier (%u)
It is used for fetching values from the address of a variable having an unsigned decimal integer stored in the memory.
Syntax: printf(“%u”,<variable name>);
Example: Unsigned Hexadecimal for integer.
#include <stdio.h>
int main() {
int a = 15;
printf("%u\n", a);
return 0;
}
Output: f
Long Int Format Specifier
It is implemented with printf function for printing the long integer value stored in the variables.
Syntax: printf(“%ld”,<variable name>);
Example
#include <stdio.h>
int main() {
int a = 438647;
printf("%ld\n", a);
return 0;
}