Scala vs. Kotlin: Multiple Inheritance and the Diamond Problem

Inheritance is one of the basic tenets of Object-Oriented Programming, along with encapsulation and polymorphism. Alongside simple inheritance, there is multiple inheritance:

Multiple inheritance is a feature of some object-oriented computer programming languages in which an object or class can inherit characteristics and features from more than one parent object or parent class. It is distinct from single inheritance, where an object or class may only inherit from one particular object or class.

C++ is famous for allowing multiple inheritance and describing the diamond problem. It states that there’s an issue when a child class inherits from multiple classes that have the same method.