Lecture
This lecture covers the evolution of interfaces in Java, focusing on the new features introduced since Java 8. It explains how interfaces can now contain default method definitions and static methods, illustrating these concepts with examples of characters and their abilities. The lecture also discusses the inheritance and redefinition of default methods, the rules for implementing methods with default definitions, and how classes can handle ambiguities arising from multiple default method definitions. Additionally, it explores the precedence of class methods over default interface methods and how conflicts between default method definitions are resolved. The lecture concludes by comparing interfaces and abstract classes, highlighting that interfaces are preferred when there is no need to model states.