YouTipCsharp If
# C# if Statement
[ C# Decision Making](#)
An **if statement** consists of a boolean expression followed by one or more statements.
## Syntax
The syntax of an **if** statement in C#:
if(boolean_expression){ /* statements to be executed if the boolean expression is true */}
If the boolean expression evaluates to **true**, then the block of code inside the if statement will be executed. If the boolean expression evaluates to **false**, then the first set of code after the end of the if statement (after the closing curly brace) will be executed.
## Flowchart
## Example
## Example
using System;
namespace DecisionMaking
{
class Program
{
static void Main(string[] args)
{
/* local variable definition */
int a =10;
/* use if statement to check boolean condition */
if(a <20)
{
/* if condition is true, then print the following */
Console.WriteLine("a is less than 20");
}
Console.WriteLine("value of a is: {0}", a);
Console.ReadLine();
}
}
}
When the above code is compiled and executed, it produces the following result:
a is less than 20 value of a is: 10
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