# C if else

C If Else statement is a conditional statement, which can be used in various forms to check a condition or multiple conditions and to perform the specified action or actions, if the particular condition is true. These are:

if :

If statement is used to perform an action if a single condition is true.

Syntax:

if (condition)

{

Execute this code if condition is true; else nothing to be executed;

}

..else:

If else statement is used to perform an action if a single condition is true and to perform another action if that condition is false.

Syntax:

if (condition)

{

Execute this code if condition is true;

}

else

{

Execute this code if condition is false;

}

..else if….else:

If elseif else statement is used to perform different actions for different conditions.

Syntax:

if (condition)

{

Execute this code if this condition is true;

}

else if (condition)

{

Execute this code if this condition is true;

}

else

{

Execute this code if all the conditions are false;

}

Example 1: Example of if statement

#include <stdio.h>   void main() { int sum = 200;   if (sum <= 200) printf ("You Lose!"); }

Output

You Lose!

Example 2: Example of if..else statement

#include <stdio.h>   void main() { int sum = 100;   if (sum <= 200) printf ("You Lose!"); else printf ("You Won!"); }

Output

You Won!

Example 3: Example of if..else if..else statement

#include <stdio.h>   void main() { int sum = 200;   if (sum <200) printf ("You Lose!"); else if (sum = 200) printf ("Match Draw!"); else printf ("You Won!"); }

Output

Match Draw!