Format Specifiers in C Language

Format specifiers in C Language

Format specifiers are used to specify the type of data to be printed on the output screen. In C language, a format specifier starts with % and ends with a conversion character.

Basic Format Specifiers

Format Specifier	Output Format
%d	Integer (decimal)
%i	Integer (decimal, octal, or hexadecimal)
%f	Floating-point number (decimal notation)
%e or %E	Floating-point number (scientific notation)
%c	Single character
%s	String of characters
%p	Pointer address

Example:

int a=10;

float b=20.5;

printf(“Integer value is %d and Float value is %f”,a,b);

Output:

Integer value is 10 and Float value is 20.5

Format specifiers example

// Create variables
int val = 15;            // Integer (whole number)
float val2 = 5.99;   // Floating point number
char name = ‘D’;       // Character

// Print variables
printf(“%d\n”, val);    // %d is a integer format specifier & \n is for new line on the out put console
printf(“%f\n”, val1);    // %f is a float format specifier
printf(“%c\n”, name);    // %c is a character format specifier

 

Declare Multiple Variables in C Language

int num1, num2, num3;

float num4, num5, num6;

char ch1, ch2, ch3;

Declare Multiple Variables in C Language

int num1, num2, num3;

float num4, num5, num6;

char ch1, ch2, ch3;

 

int x = 5, y = 6, z = 50;
printf(“%d”, x + y + z);

int x, y, z;
x = y = z = 50;
printf(“%d”, x + y + z);