if statement.

if statement

Syntax of the if statement

if (condition)

{

  statement(s);

}

• The if statement evaluates the test expression inside parenthesis.
• If test expression is evaluated to true, statements inside the body of if is executed.
• If test expression is evaluated to false, statements inside the body of if is skipped.

• From the flowchart it is clear that if the if condition is true, statement is executed; otherwise it is skipped. 
• The statement may either be a single or compound statement.

#include <iostream>

using namespace std;

int main ()

{

   // Declaring local variable

   int num = 5;

   // check the boolean condition

   if( num > 4 )

   {

       cout << "num is greater than 4" << endl;

   }

   cout << "Given number is : " << num << endl;

   return 0;

}

Output

num is greater than 4

Given number is : 5