First we create a form and we throw and edit 2 textboxes, 1 label, 4 buttons inside. We put +, -, x, / signs in the text properties of the buttons.

 

We double click on the "+" button and click the

Dim sayi1, sayi2 As Integer
sayi1 = TextBox1.Text
sayi2 = TextBox2.Text
Label1.Text = sayi1 + sayi2

 

We double click on the "-" button and click the

Label1.Text = TextBox1.Text - TextBox2.Text

 

We double click on the "x" button and click the

Label1.Text = TextBox1.Text * TextBox2.Text

 

We double click on the "/" button and click the

Label1.Text = TextBox1.Text / TextBox2.Text

 

the final version of our code

Public Class Form1

    Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
        Dim sayi1, sayi2 As Integer
        sayi1 = TextBox1.Text
        sayi2 = TextBox2.Text
        Label1.Text = sayi1 + sayi2
    End Sub

    Private Sub Button2_Click(sender As System.Object, e As System.EventArgs) Handles Button2.Click
        Label1.Text = TextBox1.Text - TextBox2.Text
    End Sub

    Private Sub Button3_Click(sender As System.Object, e As System.EventArgs) Handles Button3.Click
        Label1.Text = TextBox1.Text * TextBox2.Text
    End Sub

    Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
        Label1.Text = TextBox1.Text / TextBox2.Text
    End Sub
End Class

 

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