Getters and setters for the Dog class

Let's create a Dog class. A dog should have a name and age, and getters and setters for these variables. A getter is a method that returns a variable's current value to the caller. A setter is a dog breed. However, though we are talking about dogs at the moment, this term actually isn't about dogs: in the context of programming, a setter is a method that sets a variable to a new value.