best approach to code hierarchical classes ?

[Paul Backus]

On Tuesday, 8 June 2021 at 01:17:05 UTC, someone wrote:
> On Tuesday, 8 June 2021 at 00:54:41 UTC, someone wrote:
>> Are there alternatives to nested classes for such scenarios ?
>
> Self-reply: I created two files for classComputers and 
> classComputer and I replaced the nested-classComputer code 
> within classComputers with:
>
> import classComputers;
>
> But it won't go:
>
> Error: undefined identifier `classComputer` in module 
> `classComputers`, did you mean class `classComputers`?

Your module and class are both named `classComputers`, with an 
`s` at the end. You should change one of the to have a different 
name so that there's no ambiguity.