Sum of Even Numbers in Visual Basic NET

 Write a program in visual basic net  to display the sum of even numbers from 20 to 40.

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Program Listing

' Author : Jake R. Pomperada, MAED-IT, MIT

' www.jakerpomperada.com  / www.jakerpomperada.blogspot.com

' jakerpomperada@gmail.com

'

' Write a program in visual basic to display the sum of even numbers from 20 to 40.

Public Class Form1

    Public Function GetEvenNumberSum(min As Integer, max As Integer) As Integer

        Dim sum As Integer = 0

        For i As Integer = min To max

            If i Mod 2 = 0 Then

                sum += i

            End If

        Next

        Return sum

    End Function

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

        TextBox3.Text = Str(GetEvenNumberSum(Val(TextBox1.Text), Val(TextBox2.Text)))

    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click

        TextBox1.Text = ""

        TextBox2.Text = ""

        TextBox3.Text = ""

        TextBox1.Focus()

    End Sub

    Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click

        End

    End Sub

End Class