Much like the Math class, the .NET library's List class offers several methods and properties that can be used. One of those properties is Count as shown in the snip below.
When we want to use the Count property, we will add it to the end of a list using the dot accessor. When the application runs we can see that the Count property is bringing back 4, the number of instances in the list.
Once we push F11, the employeeCount variable is assigned 4.