If else statement in C++

February 17, 2023

If else statement Definition :

The If else statement in C++ is used to carry out operations depending on a particular situation. If and only if the provided condition is true, the operation described in the if block are carried out otherwise else block is carried out.

if else statement in c++

Syntax:

if(condition){

// statements to be executed if condition is true;

}

else{

// statements to be executed if condition is false;

}

Working of if else statement  :

  • Step 1 : In the first step, condition/expression is checked whether it is true or false.
  • Step 2 : If statement is True, if block will be executed for performing the operations.
  • Step 3 : If the condition is false , else block will be executed for performing the executions
if else statement in C++ flowchart
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Implementation of If else statement in C++

Example 1:

Run 
#include <iostream>
using namespace std;

int main() {
    int i=5;
    
    if(i>1){     // checking the condition and take decision
        cout<<"PrepInsta is one of the best for placement preparation";
    }
    else{
       cout<<"PrepInsta";
    }
    return 0;
}

Output:

PrepInsta is one of the best for placement preparation

In the above example , the value of i initialize as 5 and when the condition of if (i>1) is checked , this is taken as true and block if is executed and “PrepInsta is one of the best for placement preparation” will be print on the output screen.

Example 2:

Run 
#include <iostream>
using namespace std;

int main() {
    int i=5;
    
    if(i<1){     // checking the condition and take decision
        cout<<"PrepInsta is one of the best for placement preparation";
    }
    else{
       cout<<"PrepInsta";
    }
    return 0;
}

Output:

PrepInsta

In the above example , the value of i initialize as 5 and when the condition of if (i<1) is checked , this is taken as false and block else is executed and “PrepInsta” will be print on the output screen.

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