VB.Net - If...Then...Else Statement

VB.Net - If...Then...Else Statement

An If statement can be followed by an optional Else statement, which executes when the Boolean expression is false.

Syntax

The syntax of an If...Then... Else statement in VB.Net is as follows −

If(boolean_expression)Then
   'statement(s) will execute if the Boolean expression is true 
Else
  'statement(s) will execute if the Boolean expression is false 
End If

If the Boolean expression evaluates to true, then the if block of code will be executed, otherwise else block of code will be executed.

VB.NET PROGRAM

Module Module1
   Sub Main()
       'local variable definition '
      Dim a As Integer = 100
      ' check the boolean condition using if statement 
      If (a < 20) Then
          ' if condition is true then print the following 
          Console.WriteLine("a is less than 20")
      Else
          ' if condition is false then print the following 
          Console.WriteLine("a is not less than 20")
      End If
      Console.WriteLine("value of a is : {0}", a)
      Console.ReadLine()
   End Sub
End Module


When the above code is compiled and executed, it produces the following result −
None of the value is matching
value of a is : 100 

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