If this is the wrong place for this question, please move it.

I'm developing a text adventure game in my spare time, and came across an issue. How do I implement my levels? What I mean is, are levels just classes, Ex:

Level first  = new Level();
first.isMissionCompleted();

This example I found treats each level as a static class. It's sort of what I have in mind.

Ideally would this be a good?

I guess it depends how I'm implementing my game. I have a class that manages Characters(Players/NPCs), Weapons, and Inventory. Now each level could contain various people, cities, and locations to complete missions. I also need to check to make sure the input is valid, where the player is, and so forth.

How would you go about doing it?

Its an option, but ideally you would have a "next level" integer value stored somewhere so you wouldn't need to check every level for completion.