Re: derived class how to

From: Jose Rubio (spam_at_airphoria.com)
Date: 12/01/03 

Date: Mon, 01 Dec 2003 05:37:21 GMT

What errors are you getting ?

"f" <ffunus@yahoo.com> wrote in message
news:8f4ce98a.0311292234.6bf3185@posting.google.com...
> Suppose I have
>
> class Data{
> ...
> }
>
> class DData extends Data{
> ...
> }
>
> interface A {
> Data getData();
> }
>
> interface DA{
> DData getData();
> }
>
> What I want from DA is to focus on a special kind of Data, while it
> still can be used as A. But it does not compile. How can I fixed it?
>
>
> Can I do this:
>
> interface A {
> void getData(Data data);
> }
>
> interface DA{
> void getData(DData data);
> }

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