Public Class Latihan11
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim i As Integer
        i = 1
        ListBox1.Items.Clear()
        Do Until i > 10
            ListBox1.Items.Add(i) 'laptopinformatika.com
            i += 1
        Loop
    End Sub
    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim result As Integer = MsgBox("Apakah Anda Sudah Yakin Mau Keluar? ", MsgBoxStyle.Information + MsgBoxStyle.OkCancel, "Informasi")
        If result = DialogResult.OK Then
            Me.Close()
        Else
        End If
    End Sub
End Class