Exercises

With interfaces and abstract classes, we can improve our application structure even further! Take a look at the following exercises to test your knowledge:

1. Dinosaurs, no matter the exact species, have common behaviors such as eating and moving. Define an interface that encapsulates these behaviors, come up with a logical name for it, and implement it in the Dinosaur class.
2. Our park uses different types of vehicles for different purposes. Design an abstract class called Vehicle and derive concrete classes such as Jeep and Helicopter from it.
3. Modify the Vehicle class so that it includes an abstract method called travel() that provides different implementations in its subclasses.
4. Make our Dinosaur class sortable by implementing the Comparable interface to compare dinosaurs based on their age.
5. Similarly, our employees also have common behaviors. Define a Worker interface with methods that represent these behaviors and implement it in the Employee class...