Complete Java SE 8 Developer Bootcamp - Interface: Part 3

The video tutorial explains the importance of interfaces in Java, focusing on their role in enabling polymorphism. It discusses how interfaces allow for the creation of variable reference types and the implementation of multiple interfaces, providing a form of multiple inheritance. The tutorial also covers naming conventions for interfaces and the use of default methods introduced in Java 8. Additionally, it introduces the concept of a payable interface and how it can improve the architecture of an employee class by enforcing method implementation in subclasses.

What must a class do if it implements multiple interfaces with default methods of the same signature?

How should you name an interface, and what are common naming conventions?

What is the significance of making a class abstract in relation to interfaces?