If-else Statement with Syntax and Examples in C++

There are following types of conditional statements in C++ :

• if statement
• if - else statement
• nested if-else statement
• if -else if ladder
• switch statement

2. If-else statement - The statements inside the body of “if” only execute if the given condition returns true. If the condition returns false then the statements inside “else” is executed.

Syntax :

if (condition)

{ 

   // Body of the loop.

   // These statements will only execute if the condition is true.

}

else

{ 

   // Body of the loop.

   // These statements will only execute if the "if" condition is false.

}

Flow Diagram of if-else statement

       

Example of if-else statement in C++

#include<iostream.h>

#include<conio.h>

int main()

{

   int  a=15,b=10;

   if(a<=b)  //if condition statement

    {

       cout<<"Value of a is less than or equal to b."; //display output

    }

   else  //else condition statement

    {

       cout<<"Value of b is less than a."; //display output

    }

  getch();

}

OUTPUT:

Value of b is less than a.