Quote Originally Posted by Jefals View Post
No you wouldn't; remember, my qualifier -- "other than for educational purposes" -- what other purpose could you possibly have for this scenario!
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You'd be surprised. I thought that some of those examples were contrived back when I was first reading about OO design in the 90s. In fact, there were magazine articles that made the point you have made a couple of times here about how some of these examples have no real world application. So then I made one.

The design was aquatic organisms in a lake. So I had a class for Fish, with child classes called things like Bass, Pike, and Sunfish. They had methods such as Swim. It was nearly a stereotypical OO example, yet it had practical application.

So, as trite as the example may appear, it isn't true that they won't have real world application.