How does inheritance work in Dart classes? Provide an example.

In Dart, inheritance is a fundamental concept in object-oriented programming that allows classes to inherit properties and behaviors from other classes. It enables the creation of a hierarchical relationship between classes, where a derived class inherits the characteristics of a base class and can add or modify its own specific features. Inheritance promotes code reuse, extensibility, and the organization of related classes. Inheritance in Dart is implemented using the `extends` keyword, where a derived class extends a base class. The derived class, also known as a subclass or child class, inherits all the instance variables, methods, and getters/setters from the base class, also known as a superclass or parent class. This means that the derived class can access and use the inherited members as if they were defined within itself. H....