printf and scanf function

Example of printf() function

printf() function in C language: In C programming language, printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen. We use printf() function with %d format specifier to display the value of an integer variable.

#include<stdio.h>
int main ()
{
  printf("Hello World");
  return 0;
}

Output

    Hello World

Example of scanf() function

scanf(“%d”, &b); The program will read in an integer value that the user enters on the keyboard (%d is for integers, as is printf, so b must be declared as an int) and place that value into b. The scanf function uses the same placeholders as printf: int uses %d.

#include<stdio.h>
int main ()
{

   int number;
   scanf("%d", &number);
   printf("Value is = %d", number);
   return 0;
}

//enter input 10

Output

 Value is = 10

How to use printf function in c

printf() function in C language:In C programming language, printf() function is used to print the “character, string, float, integer, octal and hexadecimal values” onto the output screen. We use printf() function with %d format specifier to display the value of an integer variable.

How to use scanf function in c

In the C programming language, scanf is a function that reads formatted data from stdin (i.e, the standard input stream, which is usually the keyboard, unless redirected) and then writes the results into the arguments given.