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How to Use Format Specifier in C Programming:

In Printf (For Output)

To Print any Data To Output Screen We Use printf() Function. But for Printing Variable's data we have to Use Format Specifiers inside Printf() function's String, and after the String we Write out Data Type Nane/Variable's Name and separates the String The The variable's Value We Use Comma before Variable name

int a=5;
printf("%d",a);

here we first Declared The Variable (int) to store a Integer Value, Then We gave Our Variable name (a) and the value 5, After This we used Printf() function To print out values to Output Screen
Formate Specifier work like a PlaceHolder. like it Export Or print the values where the Formate Specifier is Declared.

inside the printf() function's strings we write the %d (Formate Specifier For Integers) and after the comma we write our Variable name.

Example 1:


#include
void main()
{

     int a=1;
     printf("Value = %d",a);

}

Results

Value = 1

Example 2


#include
void main()
{

     int a=1;
     printf("%d = Value",a);

}

Results

1 = value

C Format Specifier Example


#include
void main()
{

     int a=1;
     char b='z';
     float c=3.5;
     char d[15]="programminghead";
     printf("a =%d",a);
     printf("\nb =%c",b);
     printf("\nc =%f",c);
     printf("\nd =%s",d);

}

Results

a =1
b =z
c =3.500000
d =programminghead

Example (Explained):

#include<stdio.h> :

#include<stdio.h> is a Header file that includes Slandered (str) Input Output (IO) Library/File. Because All Of the C's In build Functions are declared in <stdio.h> File

main() :

main() (main function) is the entry point of C program. When We Run our C program the execution Control Directly to the main() (main function) and gave us result in output.

printf() :

printf() is also a Function of C. Printf() is used to print “character, string, float, integer,etc” to the output screen.
So what ever we write between printf() inverted commas (" ") that will be printed on the output Screen

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