Summary

In this lesson, you learned about the null coalescing operator. This is a nice little operator because it helps us write stabler applications that don't crash and for example, an object reference has not been set. You created the Car class, again using automatic properties and parameters, and set up the code to search a small database of a list of cars. You also introduced some errors and fixed them.

In the next lesson, you are going to learn about overloading operators.