Printf in C
About Printf
Printf is a kind of function which is used for giving the output. This will help to print the given statement to the console.
Working of Printf :
The main functionality of printf function is to print the output according to the given inputs .
Important Note :
- It displays the total amount of printed characters.
- Basically, printf function is used to return the output.
Declaration of Printf:
printf("format string",argument_list);
Example 1
Write a program to implement the printf function.
Code
Run
#include<stdio.h>
int main ()
{
int a = 100;
int b = 200;
printf ("Before swap a = %d\n", a);
printf ("Before swap b = %d\n", b);
a = a + b;
b = a - b;
a = a - b;
printf ("\nAfter swap a = %d", a);
printf ("\nAfter swap b = %d\n", b);
return 0;
}
Output
Before swap a = 100 Before swap b = 200 After swap a = 200 After swap b = 100
Example 2
Write a program by using printf function.
Code
Run
#include<stdio.h>
int main()
{
float number1;
double number2;
printf("Enter first number = ");
scanf("%f", &number1);
printf("Enter second number = ");
scanf("%lf", &number2);
printf("number 1 = %f\n", number1);
printf("number 2 = %lf", number2);
return 0;
}
Output
Enter first number = 4 Enter second number = 5 number 1 = 4.000000 number 2 = 5.000000
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