Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim num As Integer

        num = Integer.Parse(TextBox1.Text)

        If num > 0 Then
            MessageBox.Show("positive")
        End If

        If num Mod 2 = 0 Then
            MessageBox.Show("even")
        End If
    End Sub
End Class