Use class without instance (like e.g. String)

[noiasca]

@franks_pv

you are right. The given idea of me is only an example. The Idea is to have such a class that can be used without separate instance inline.

That makes not so much sense for me.
You can enrich a class with new functionality.
You will need an instance to apply the functionality.

Please make a real world example what you want to do.