Making a calculator on Visual Basic

Design without codes

Design after adding codes

Final design

 You will need the following:
* 17 Buttons
* 3 Textbox

Button Layout:
Button1 = 1          Button10 = 0
Button2 = 2          Button11 = +

Button3 = 3          Button12 = -
Button4 = 4          Button13 = x
Button5 = 5          Button14 = /
Button6 = 6          Button15 = Clear
Button7 = 7          Button16 = "="
Button8 = 8          Button17 = --->
Button9 = 9 



The following is the codes for this program 

 Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox1.Text = TextBox1.Text + "1"
    End Sub

 Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        TextBox1.Text = TextBox1.Text + "2"
    End Sub

    Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
        TextBox1.Text = TextBox1.Text + "3"
    End Sub

    Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
        TextBox1.Text = TextBox1.Text + "4"
    End Sub

    Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
        TextBox1.Text = TextBox1.Text + "5"
    End Sub

    Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
        TextBox1.Text = TextBox1.Text + "6"
    End Sub

    Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
        TextBox1.Text = TextBox1.Text + "7"
    End Sub

    Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
        TextBox1.Text = TextBox1.Text + "8"
    End Sub

    Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click
        TextBox1.Text = TextBox1.Text + "9"
    End Sub

    Private Sub Button10_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button10.Click
        TextBox1.Text = TextBox1.Text + "0"
    End Sub

    Private Sub Button15_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button15.Click
        TextBox1.Text = ""
        TextBox2.Text = ""
        TextBox3.Text = ""
    End Sub

    Private Sub Button11_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button11.Click
        TextBox2.Text = TextBox1.Text
        TextBox3.Text = "+"
        TextBox1.Text = ""
    End Sub

    Private Sub Button16_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button16.Click
        If TextBox3.Text = "+" Then
            TextBox3.Text = TextBox1.Text
            TextBox1.Text = Val(TextBox2.Text) + Val(TextBox3.Text)
        End If
        If TextBox3.Text = "x" Then
            TextBox3.Text = TextBox1.Text
            TextBox1.Text = Val(TextBox2.Text) * Val(TextBox3.Text)
        End If
        If TextBox3.Text = "/" Then
            TextBox3.Text = TextBox1.Text
            TextBox1.Text = Val(TextBox2.Text) / Val(TextBox3.Text)
        End If
        If TextBox3.Text = "-" Then
            TextBox3.Text = TextBox1.Text
            TextBox1.Text = Val(TextBox2.Text) / Val(TextBox3.Text)
        End If
        TextBox2.Text = ""
        TextBox3.Text = ""
    End Sub

    Private Sub Button13_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button13.Click
        TextBox2.Text = TextBox1.Text
        TextBox3.Text = "x"
        TextBox1.Text = ""
    End Sub

    Private Sub Button14_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button14.Click
        TextBox2.Text = TextBox1.Text
        TextBox3.Text = "/"
        TextBox1.Text = ""
    End Sub

    Private Sub Button17_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button17.Click
        TextBox1.Text = ""
    End Sub

    Private Sub Button12_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button12.Click
        TextBox2.Text = TextBox1.Text
        TextBox3.Text = "-"
        TextBox1.Text = ""
    End Sub
End Class
 



Project and Source File Download