Buatlah form seperti dibawah ini.
Public Class Form1
Dim x As Integer = 0
Dim w As String
Dim y As Button
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If x = 0 Then
w = Button1.Text
y = Button1
x = 1
Else
y.Text = Button1.Text
Button1.Text = w
x = 0
End If
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
If x = 0 Then
w = Button2.Text
y = Button2
x = 1
Else
y.Text = Button2.Text
Button2.Text = w
x = 0
End If
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Clickk
If x = 0 Then
w = Button3.Text
y = Button3
x = 1
Else
y.Text = Button3.Text
Button3.Text = w
x = 0
End If
End Sub
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button4.Click
If x = 0 Then
w = Button4.Text
y = Button4
x = 1
Else
y.Text = Button4.Text
Button4.Text = w
x = 0
End If
End Sub
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
If x = 0 Then
w = Button5.Text
y = Button5
x = 1
Else
y.Text = Button5.Text
Button5.Text = w
x = 0
End If
End Sub
Private Sub Button6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button6.Click
If x = 0 Then
w = Button6.Text
y = Button6
x = 1
Else
y.Text = Button6.Text
Button6.Text = w
x = 0
End If
End Sub
Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
If x = 0 Then
w = Button7.Text
y = Button7
x = 1
Else
y.Text = Button7.Text
Button7.Text = w
x = 0
End If
End Sub
Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
If x = 0 Then
w = Button8.Text
y = Button8
x = 1
Else
y.Text = Button8.Text
Button8.Text = w
x = 0
End If
End Sub
Private Sub Button9_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button9.Click
If x = 0 Then
w = Button9.Text
y = Button9
x = 1
Else
y.Text = Button9.Text
Button9.Text = w
x = 0
End If
End Sub
End Class
Setelah selesai, dan apabila kita running / jalankan maka hasilnya apabila telah kita susun,akan seperti gambar dibawah ini :
Semoga Bermanfaat.....