<div dir="ltr"><blockquote dir="ltr" class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span style="font-family:arial,sans-serif">This doesn't work for primitive types </span>(e.g., a person's age, grade point average, number of children, etc.)</blockquote><div dir="ltr"><br></div><div class="gmail_quote gmail_quote_container"><div>Oops, I meant to say that subclassing doesn't work for primitive types. Obviously, using wrapper classes does.</div><div><br></div></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature">Archie L. Cobbs<br></div></div>