freeCodeCamp/guide/english/csharp/if-else-statement/index.md

title
If Else Statement

If Else Statement

The If-Else statement executes a block of code depending on whether your precondition is fullfilled or not.

Example

if(boolean expression)
{
// execute this code block if expression evalutes to true
}
else
{
// always execute this code block when above if expression is false
}


int Price = 30;

If (Price == 30)
{
  Console.WriteLine("Price is equal to 30.");
}

Else 
{
  Console.WriteLine("Price is not equal to 30.");
}

Since we already declared our int Price to be 30, this will be the expected output.

Output

Price is equal to 30.

Shorten If Else Statement

We can use the ternary :? which is great for short if else statements. For example:

int Price=30;
(Price==30)?Console.WriteLine("Price is Equal to 30."):Console.WriteLine("Price is Not Equal to 30.")