C# Interfaces

interfaces in C # provide another way to achieve ...

• runtime polymorphism

• class inheritance

• multiply class inheritance

• encapsulation

use ____ to declare a class interface

• delegate keyword

• interface keyword

• this keyword

• abstract keyword

interface is a completely _____ class which contains only _____ members

• static; abstract

• abstract; abstract

• abstract; static

• sealed; sealed

by using interfaces you can include behavior from multiple sources in a class

• true

• false

c# supports multiple inheritances of classes

• true

• false

when a class or struct implements an interface, the class or struct must provide an implementation for all of the members that the interface defines

• true

• false

if a base class implements an interface, any class that's derived from the base class inherits that implementation

• true

• false

A contract that states any class or struct that inherits from the interface must implement its member variables and methods

• object

• module

• interface

• nothing of these items

an interface can have static members

• true

• false

what are the examples of naming convention for interfaces?

• ITestInterface

• ExampleInterface

• IExampleInterface

• TestInterface