The if-else statement is used to perform two operations for a single condition. The if-else statement is an extension to the if statement using which, we can perform two different operations, i.e., one is for the correctness of that condition, and the other is for the incorrectness of the condition. Here, we must notice that if and else block cannot be executed simultaneously. Using an if-else statement is always preferable since it always invokes an otherwise case with every if condition. 

//code to be executed if condition is true  

//code to be executed if condition is false  

Let’s take an example of a Boolean expression with the help of actual coding in C: If the condition is met (true) as per the given logical expression, then the program will print the statements under ‘if’ and if the condition is not met (false) then the program will print the statements which are under ‘else’ and below the ‘if-else.’

To check whether a number is greater or less than a specific number:

int a = 10; /* local variable definition */

if( a > 5 ) /* check the boolean condition */

printf("Yes, a is greater than 5" ); /* if the condition is true then print this */

printf("No, a is less than 5" ); /* if the condition is false then print this */

To check which one is the greater among the 3 numbers:

if(a > c){printf("a is the greatest among the three"); }

else{printf("c is the greatest among the three");}

if(b > c){printf("b is the greatest among the three");}

To check if an input number is divisible by 2 or 3:

printf("The entered number is divisible by both 2 and 3");

printf("The entered number is divisible by 2");

printf("The entered number is divisible by 3");

The purpose of this blog post is to teach you how to write if else statements in C and to provide examples of them.

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if else

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