Inheritance establishes common behavior and interfaces for your classes, while composition ... and “has a” rule when designing your types. Prefer using composition over inheritance when ...

An abstract class is a special type of class that cannot ... In addition, you must use an interface if you want to simulate inheritance for structs, because they can’t actually inherit from ...

Runtime: This is accomplished through method overriding and inheritance ... different types of objects using a consistent interface. Polymorphism allows objects of different classes to be treated ...

Polymorphism is the ability of different objects to respond to the same message in different ways, depending on their type. With interface inheritance ... class. One of the benefits of using ...

The array should be of a type that is high enough on the inheritance chain that ... The program comes with an Interface IDroid that must be implemented by subclasses and can NOT be altered. You MUST ...

the principle of inheritance is used to passed down common data points and methods down from the Animal class to the types classes before they are intialized in the individual animal classes.

Extension methods provide a great way for extending a class functionality -- but it's interfaces that let you use those ... "You don't screw with working code." And, unlike using inheritance to extend ...

Classes with clear responsibilities, well-defined boundaries and a proper inheritance ... declared using the sealed keyword, followed by the permits clause to explicitly name the classes that can ...

A measurement is done for C# inheritance and interface programs. The metric values of class inheritance and interface prove which program is good to use and beneficial for C# developers.