Define what is a base class?

1 Answer

Answer :

A class declaration may specify a base class by following the class name with a colon and the name of the base class. omitting a base class specification is the same as deriving from type object.

Related questions

Description : How do you enable your application to use .NET base class library members without referencing their fully qualified names?

Last Answer : Use the Imports keyword (Visual Basic .NET) or the using keyword (Visual C#) to make a .NET Framework namespace visible to your application. 

Description : If a base class has a number of overloaded constructors, and an inheriting class has a number of overloaded constructors; can you enforce a call from an inherited constructor to a specific base constructor?

Last Answer : Yes, just place a colon, and then keyword base (parameter list to invoke the appropriate constructor) in the overloaded constructor definition inside the inherited class.

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Last Answer : Nothing

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Description : Can properties hide base class members of the same name?

Last Answer : Yes

Description : If a base class has a number of overloaded constructors, and an inheriting class has a number of overloaded constructors; can you enforce a call from an inherited constructor to a specific base constructor?

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Description : If a base class has a bunch of overloaded constructors, and an inherited class has another bunch of overloaded constructors, can you enforce a call from an inherited constructor to an arbitrary base constructor? 

Last Answer : Yes, just place a colon, and then keyword base (parameter list to invoke the appropriate constructor) in the overloaded constructor definition inside the inherited class. 

Description : Can you prevent your class from being inherited and becoming a base class for some other classes?

Last Answer : Yes, that’s what keyword sealed in the class definition is for. The developer trying to derive from your class will get a message: cannot inherit from Sealed class WhateverBaseClassName. It’s the same concept as final class in Java.

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Description : Define what is the difference between string keyword and System. String class?

Last Answer : String keyword is an alias for System. String class. Therefore, the System. String and string keyword are the same, and you can use whichever naming convention you prefer. The String class provides many methods for safely creating, manipulating, and comparing strings.

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Description : Define what is the difference between Class And Interface?

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Last Answer : Yes

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Last Answer : Because a Shared (static) member belongs to the type rather than to any instance of the type, you can access the member without first creating an instance of the type.

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Description : What’s the difference between an interface and abstract class?

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Description : Can you allow a class to be inherited, but prevent the method from being over-ridden?

Last Answer : Yes. Just leave the class public and make the method sealed. 

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Last Answer : Yes. The keyword “sealed” will prevent the class from being inherited. 

Description : What is the syntax to inherit from a class in C#? 

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