# Exercise: Classes

Exercise: Classes: Exercise: Classes.

Updated: November 3, 2026

1. [Exercise: Classes](https://www.ask-codey.com/lessons/exercise-classes) (Apprentice): Write six classes from a specification (Rectangle, Circle, MathTest, Printer, Elevator and Airplane), choosing each property's access, and let the tests check them.

Source: https://www.ask-codey.com/courses/csharp-full-stack-bootcamp/topics/exercise-classes