VB.NET Recursion
Recursion is the process where a method can call itself.
Recursion is the process where a method can call itself. I simple term, it is the process of calling a function from within the same function. Recursion seems like to call itself.
For Example, when you put two mirror parallel position on that time recursion happen because each mirror create infinite form of its image.
To show you how recursion method works. I have created factorial function because to get factorial of any integer factorial function must call itself. Factorial of 3 must be 6. See the below code.
Code
Module Module1
Sub Main()
Dim f As New Fact()
Console.WriteLine("Factorial of 3 is :" & f.factorial(3))
Console.WriteLine("Factorial of 4 is :" & f.factorial(4))
Console.WriteLine("Factorial of 5 is :" & f.factorial(5))
Console.WriteLine("Factorial of 6 is :" & f.factorial(6))
Console.WriteLine("Factorial of 7 is :" & f.factorial(7))
Console.WriteLine("Factorial of 8 is :" & f.factorial(8))
Console.WriteLine("Factorial of 9 is :" & f.factorial(9))
Console.WriteLine("Factorial of 10 is :" & f.factorial(10))
Console.WriteLine("Factorial of 11 is :" & f.factorial(11))
Console.WriteLine("Factorial of 12 is :" & f.factorial(12))
Console.WriteLine("Factorial of 13 is :" & f.factorial(13))
Console.ReadLine()
End Sub
Class Fact
Public Function factorial(n As Integer) As Long
Dim result As Long
If n = 1 Then
Return 1
Else
result = factorial(n - 1) * n
Return result
End If
End Function
End Class
End Module
Output
