float data type

float data type in c programming

It is a keyword.

1001.23, 232.97, 111.00001, 121.99 etc is example of float type value. 1001, 232, 111, 121, etc. is not example of float type value.But float type variable can hold this type value.

size of float is 4 byte according to 32-bit operating system. float type variable hold value between -2,147,483,648 to 2,147,483,647

%f is used in printf() function to print flaot type value.

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
float a = 9833.121; 
 clrscr(); 
 printf("value of a = %f",a); 
 getch(); 
}

See Output

%f is used in scanf() function to read float type value.

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
 float a;
 clrscr();
 printf("Enter of a: ");
 scanf("%f",&a);/*  & is used before variable name when you want to read data*/
 printf("\n value of a = %f",a);
 getch();
}

See Output

Program

#include <stdio.h> 
#include <conio.h> 
void main(){ 
 float a; 
 clrscr(); 
 printf("Enter value of a: ");
 scanf("%f",&a);/*  %.2f is used to print two decimal places. */
 printf("\n value of a = %.2f",a);
 getch();
}

See Output

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