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What is if else in C Programming

if else in C

In C programming if-else statement is an extended form of an if statement, In an if-else statement there is one condition to check, and on the basis of its result, one decision is selected out of two decisions.

In if-else there are:

  • ONE condition
  • TWO possible decisions

c if else block diagram

If the condition is true then if-block will be executed and if the condition is false then else-block will be executed.

if-else Statement Syntax

if(condition)

 {

      // if-block codes

 }

else

 {

    // else-block codes

 }

The working of the if-else statement is very simple, In the above syntax if the condition is true then if-block codes will be executed and if the condition is false then else-block codes will be executed.

if-else Statement  Examples

Example 1:

Program: To find the greater number in two numbers

#include<stdio.h>

 int main()

  {

     int A=27, B=34;

     if(A>B)

     {

       printf("A is greater than B \n");

     }

     else

     {

       printf("B is greater than A \n");

     }

     return 0;

  }

Output:

B is greater than A

**************************************************

Example 2:

Program: To find out the given number is an even number or an odd number

#include<stdio.h>

 int main()

  {

     int num=34;

     if(num % 2==0)

     {

       printf("%d is an Even Number",num);

     }

     else

     {

       printf("%d is an Odd Number",num);

     }

     return 0;

  }

Output:

34 is an Even Number

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