C++ nested if statements

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It is always legal to nest if-else statements, which means you can use one if or else if statement inside another if or else if statement(s).

Syntax:

The syntax for a nested if statement is :

Example

if( boolean_expression 1)
{
   // Executes when the boolean expression 1 is true
   if(boolean_expression 2)
   {
      // Executes when the boolean expression 2 is true
   }
}
                                        

You can nest else if...else in the similar way as you have nested if statement.

Example:

Example

#include <iostream>
using namespace std;
 
int main ()
{
   // local variable declaration:
   int a = 100;
   int b = 200;
 
   // check the boolean condition
   if( a == 100 )
   {
       // if condition is true then check the following
       if( b == 200 )
       {
          // if condition is true then print the following
          cout << "Value of a is 100 and b is 200" << endl;
       }
   }
   cout << "Exact value of a is : " << a << endl;
   cout << "Exact value of b is : " << b << endl;
 
   return 0;
}
                                        

Output Will Be :

Output

X = 30 and Y = 10
                                        


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