Learn Java from Scratch - A Beginner's Guide - Step 20 - Java Interface Flyable and Abstract Class Animal - an Exercise

The video tutorial explains the differences between interfaces and abstract classes, using examples of a Flyable interface and an Animal abstract class. It includes exercises to implement these concepts with Bird and Aeroplane classes for interfaces, and Dog and Cat classes for abstract classes. The tutorial provides a solution for the interface exercise and encourages viewers to attempt the abstract class exercise independently. The video concludes with a brief mention of polymorphism as a future topic.

What is the purpose of creating an interface called Flyable?

What are the implementations of the Flyable interface mentioned in the text?

Describe the family method for Bird and Airplane as per the exercise.

What should the abstract method in the Animal class be called?

What is the significance of using an interface to represent common actions?

Explain the difference between an interface and an abstract class.

How do you implement the bark method in the Dog and Cat classes?