Questions

We gained a lot of knowledge in this chapter, so don’t be hard on yourself if you can’t answer all of these questions on your first attempt:

1. How many superclasses can a class inherit from in its class definition?
2. If you want to create a new class that inherits from many parent classes, how could you achieve this?
3. Describe polymorphism and give an example of how it could be useful.
4. Explain the difference between instance fields/methods and static fields/methods.
5. What is the purpose of starting your class name, field name, or method name with an underscore?
6. Can you remember how to initiate class fields from a constructor without the need for a constructor body?
7. Give some examples of where you would use generics and why that would benefit your code’s type safety.
8. What happens to your code execution if you call an async method with or without await?