Decision Making:

The if statement is used to execute some code if a condition is true.
Syntax:

if(condition)  
{
//statements
}

The condition specifies which expression is to be evaluated. If the condition is true,the statements in curly brackets are executed.

If statement:

Use relational operators to evaluate conditions.
For example:

if(4>2)  
{
cout<<"True";  
}

Output:

True  

The if statement evaluates the condition (4>2), finds it to be true ,and then executes the cout statement. If we change the greater operator to less than operator (4>2), the statement will not be executed and nothing will be printed out.