# Exercise: Polymorphism

Exercise: Polymorphism: Exercise: Polymorphism.

Updated: November 3, 2026

1. [Exercise: Polymorphism](https://www.ask-codey.com/lessons/exercise-polymorphism) (Journeyman): Write a café Order that holds any mix of menu items in one List<MenuItem>, and works out the total, a meal-deal discount and the receipt, letting each item price itself.

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