C-INPUT AND OUTPUT FUNCTIONS

1. C-Output [print text].

printf() function is used to print the output or display the output.

Example:

#include <stdio.h> //Header file

int main() //Main function

{

printf("Hello World!");//Output statement

return 0;

}

Output:

Hello World!

2. C-Input [Get text].

scanf() function is used to get input from the user.

Example:

#include<stdio.h>

int main()

{

int a;

char c;

float f;

printf("Enter a integer value ,character, float value:\n");

scanf("%d%c%f",&a,&c,&f);

printf("Integer value:%d\nCharacter:%c\nFloat value:%f",a,c,f);

return 0;

}

Output:

Enter a integer value, character, float value:

9.13

Integer value:10

Character:s

Float value:9.13

Note: printf() and scanf() are built-in functions present in stdio.h header file.

Points to remember:

%d,%c,%f are format specifiers in C, it helps the compiler identify the data type of variable we are going take as input or displaying.

'&' is the address operator in C. It helps the compiler change the actual value of this variable stored at this address in the memory.

Habiba V S