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Static and Nested Classes in C# Quiz

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Questions and Answers

What does it mean when a class member is declared as static in C#?

The member can be accessed only by the class constructor

The member is accessible only within the class

There is only one copy of the static member regardless of the number of class objects created (correct)

The member is not accessible by any other class

In C#, what is the significance of declaring a class as static?

It enables inheritance from other classes

It cannot be instantiated and can contain only static members (correct)

It allows for multiple instances of the class to be created

It restricts access to the class members

What is a static class not allowed to contain in C#?

Abstract methods

Overloaded constructors

Instance methods (correct)

Non-static data members

What is the main restriction when working with a static class in C#?

It cannot be instantiated Signup and view all the answers

Which of the following can an interface in C# contain?

Method declarations, properties, indexers, and events Signup and view all the answers

What is the purpose of the 'static' modifier in C#?

To define elements that are common to all instances of a class Signup and view all the answers

What must a class do when it inherits an interface in C#?

It must implement each of the declared interface members. Signup and view all the answers

How are interfaces defined in C#?

Using the 'interface' keyword without access specifiers Signup and view all the answers

What is a key difference between an interface and an abstract class in C#?

An abstract class can contain nonabstract methods, while an interface cannot. Signup and view all the answers

Which statement best describes the purpose of an interface in C#?

To define a behavior that the inheriting class or structure can support Signup and view all the answers