To those not familer with OO-jargon, an abstract class is where the methods of a class are defined but not implemented.

That's not the generally agreed-on definition.

As a source on this (a source I have within reach), I'll cite the "Gang of Four" Design Patterns book, page 15:

An abstract class is one whose main purpose is to define a common interface for its subclasses. An abstract class will defer some or all of its implementation to operations defined in subclasses; hence an abstract class cannot be instantiated.

That's the definition I've been used to working with for the past decade or so.

You might be thinking of an "interface".

In reply to Re: Abstract Classes by dws
in thread Abstract Classes by hardburn

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