Addition of Two Numbers in VB.NET

I wrote this program to ask the user to give two integer number and then the program will compute the sum of two numbers using Visual Basic NET as my programming language.

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Sample Program Output

Program Listing

Public Class Form1

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

        Dim sum, a, b

        a = Val(TextBox1.Text)

        b = Val(TextBox2.Text)

        sum = (a + b)

        Label4.Text = "The sum of " & a & " and " & b & " is " & sum & "."

    End Sub

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

        TextBox1.Text = ""

        TextBox2.Text = ""

        Label4.Text = ""

        TextBox1.Focus()

    End Sub

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

        End

    End Sub

End Class

Addition of Two Numbers in Visual Basic.NET

A simple program that I wrote using Visual Basic.NET to add the sum of two numbers. I'm just learning Visual Basic.NET primarily because my experience before in programming in using Visual Basic 6 it is a good learning experience on my part.

Add me at Facebook my address is jakerpomperada@gmail.com and jakerpomperada@yahoo.com

My mobile number here in the Philippines is 09173084360.

Sample Program Output

Program Listing

Public Class Form1

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

        Dim sum As Integer

        Dim a As Integer

        Dim b As Integer

        Label4.Visible = True

        If TextBox1.Text = "" Then

            Label4.Visible = False

            MessageBox.Show("Sorry cannot be empty.")

            TextBox1.Focus()

        End If

        a = Val(TextBox1.Text)

        b = Val(TextBox2.Text)

        sum = (a + b)

        Label4.Text = "The sum of " & a & " and " & b & " is " & sum & "."

    End Sub

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load

        Label4.Visible = False

    End Sub

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

        TextBox1.Text = ""

        TextBox2.Text = ""

        Label4.Text = ""

        TextBox1.Focus()

    End Sub

End Class