Learn Java from Scratch - A Beginner's Guide - Step 19 - Java Interface Versus Abstract Class - a Comparison

The video explores the differences between abstract classes and interfaces, emphasizing that while their syntax may appear similar, they serve different purposes. Interfaces are used to establish communication patterns between systems, while abstract classes provide a high-level structure for subclasses. The video highlights that interfaces cannot have private methods or variables, whereas abstract classes can. Additionally, a class can implement multiple interfaces but cannot extend multiple abstract classes. The video concludes by summarizing these syntactical differences.

What are the syntactical differences between methods in an interface and an abstract class?

Can a class implement multiple interfaces, and what does this imply about abstract classes?