C# 5.0 Unleashed

Multiple Inheritance for Interfaces

Each class (or struct) can implement multiple interfaces. Interfaces are covered at the end of this chapter, but you can roughly regard them as contracts that do not have an implementation of their own. When implementing an interface, you basically promise to obey the contract specified by the interface. One example is IDisposable, which we talked about in Chapter 12:

public interface IDisposable{    void Dispose();}

Implementing an interface is allowed to coexist with derivation from a base class or implementation of zero or more interfaces. In the class base specification, which is the part of the class declaration after the colon, the base class (if any is specified) has to come before the list of interfaces ...