Public Class Form1

    Private Sub btn_keluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_keluar.Click

        End

    End Sub

   

Private Sub btn_proses_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_proses.Click

        volume.Text = sisi.Text * sisi.Text * sisi.Text

    End Sub

    Private Sub btn_hapus_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_hapus.Click

        volume.Text = ""

        sisi.Text = ""

    End Sub

End Class

Sumber : Esra  Handayani