C#L9

Question 1

What is a class in C#?

Answer 1

A class is a blueprint for creating objects, defining attributes and behaviors.

Question 2

What are the four pillars of OOP?

Answer 2

Encapsulation, Abstraction, Inheritance, Polymorphism.

Question 3

What is the difference between fields and methods?

Answer 3

Fields store data; Methods define behavior.

Question 4

Name and explain two access modifiers in C#.

Answer 4

Public (accessible anywhere), Private (accessible only within the class).

Question 5

What is a constructor?

Answer 5

A special method used to initialize objects.

Question 6

Give an example of a class with a method.

Answer 6

public void Bark() { Console.WriteLine(“Woof!”); }

Question 7

What is the difference between static and instance members?

Answer 7

Static members belong to a class, instance members belong to an object.

Question 8

Explain encapsulation with an example.

Answer 8

Restricting access using private fields and public properties.

Question 9

What is a property in C#?

Answer 9

A controlled way to access fields.

Question 10

How do you instantiate an object?

Answer 10

Product product = new Product();