Birden fazla else if kullanımı hakkında örnek

<div>
<asp:TextBox ID="txtNot" runat="server"></asp:TextBox>
<asp:Button ID="btnHesap" runat="server" Text="Hesapla" OnClick="btnHesap_Click" />
</div>

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int not = Convert.ToInt32(txtNot.Text);
if (not < 45)
Response.Write("Not 1");
else if (not < 55)
Response.Write("Not 2");
else if (not < 70)
Response.Write("Not 3");
else if (not < 85)
Response.Write("Not 4");
else
Response.Write("Not 5");