Interface Inheritance
Interface inheritance is an object-oriented programming (OOP) concept where a class or interface inherits the method signatures and constants from one or more parent interfaces, without inheriting their implementation. It defines a contract that implementing classes must fulfill by providing concrete implementations for all inherited abstract methods. This enables polymorphism and code reusability by allowing different classes to share a common interface while implementing behaviors differently.
Developers should use interface inheritance when designing systems that require multiple classes to adhere to a common contract, such as in plugin architectures, API design, or when implementing design patterns like Strategy or Factory. It is essential in languages like Java, C#, and TypeScript for achieving abstraction and decoupling, as it allows objects to be treated uniformly based on their interface rather than their concrete type, facilitating easier testing and maintenance.