In this quiz, we will explore key concepts related to C# interfaces, an essential feature of object-oriented programming in C#. Interfaces define a set of rules that classes must adhere to, ensuring consistency and compatibility across different parts of a program. Through these questions, you will test your knowledge of how to declare interfaces, implement them in classes, and understand the differences between interfaces and abstract classes. Get ready to deepen your understanding of how interfaces work and how they help ensure that C# classes conform to specific requirements.
1.
What is the purpose of a C# interface?
2.
What keyword is used to declare an interface in C#?
3.
What happens if a class adopts an interface but fails to implement all required methods?
4.
What is the convention for naming interfaces in C#?
5.
Which of the following is NOT allowed in a C# interface?
6.
What is the correct syntax to declare a method inside a C# interface?
7.
Can an interface contain properties in C#?
8.
What will happen if you try to implement an interface without providing all required properties and methods?
9.
Which of the following is true about implementing multiple interfaces in C#?
10.
How do you declare a class that implements an interface?
11.
Which of the following is a valid way to declare a property in an interface?
12.
Can you instantiate an interface directly in C#?
13.
What is the error message when a class fails to implement an interface correctly?
14.
How can you differentiate between an interface and a class based on naming conventions?
15.
What is required for a class to conform to an interface in C#?
