[DUG] Abstract method

[Dennis Chuah]

Unlike Java and some other languages, Delphi has no mechanism to flag a 
class as an abstract class, and so the compiler is not able to raise an 
error if you declare a class that contains abstract methods.

It can only issue a warning if you try to create an instance of the class, 
which Jeremy rightly points out, ought to be a compile error.  However, 
there are other ways to create an instance of an abstract class for which 
the compiler is not able to control, for example, through a class type 
variable.

>From: Jeremy North <jeremy.north at gmail.com>
>
> > If you subclass and do not override an abstract method then a
> > warning/hint is raised regarding the abstract method.
> > Read the hints and warnings ;)
>
>Which really should be a fatal error and is in .NET.
>
>cheers,
>Jeremy

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