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Questions and Answers
What is an object in the context of classes and objects in C#?
What is an object in the context of classes and objects in C#?
- It is a blueprint of a specific class
- It defines the properties and functionalities of a class
- It holds the value of a class-level variable
- It is an instance of a class with specific attributes and functionalities (correct)
What does a class define in object-oriented programming?
What does a class define in object-oriented programming?
- Only the methods that can be used by its objects
- The properties, fields, events, and methods their objects will have (correct)
- The restrictions on accessing its objects
- Only the data types used by its objects
Which keyword is used to define a class in C#?
Which keyword is used to define a class in C#?
- classification
- classdef
- define
- class (correct)
What is the purpose of a field in a C# class?
What is the purpose of a field in a C# class?
Which member of a class should generally have a private access modifier used with property?
Which member of a class should generally have a private access modifier used with property?
What is the purpose of the set{ } in a property?
What is the purpose of the set{ } in a property?
In C# 3.0 onwards, what feature makes property declaration easy if you don't want to apply logic in getter or setter?
In C# 3.0 onwards, what feature makes property declaration easy if you don't want to apply logic in getter or setter?
What does a method in C# may or may not return?
What does a method in C# may or may not return?
How is a constructor in C# defined?
How is a constructor in C# defined?
How are objects of a class created in C#?
How are objects of a class created in C#?
Flashcards
Object (C#)
Object (C#)
An instance of a class with specific attributes and functionalities.
Class (OOP)
Class (OOP)
Defines the properties, fields, events, and methods for its objects.
Class Keyword (C#)
Class Keyword (C#)
Used to define a class in C# code.
Field (C# Class)
Field (C# Class)
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Private Access Modifier
Private Access Modifier
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Property Setter
Property Setter
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Auto-Implemented Properties
Auto-Implemented Properties
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Method Return Value
Method Return Value
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C# Constructor
C# Constructor
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Object Creation (C#)
Object Creation (C#)
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Study Notes
Classes and Objects in C#
- An object in C# represents an instance of a class, which is a blueprint for creating objects.
- A class defines a custom data type that includes data (fields) and behavior (methods).
Defining Classes in C#
- The
classkeyword is used to define a class in C#.
Class Members
- A field in a C# class is a variable that is part of the class.
- Fields typically have a private access modifier and are accessed through properties.
- Properties are used to encapsulate fields and provide a way to get or set their values.
Properties
- The
setaccessor in a property is used to assign a value to the underlying field. - In C# 3.0 and later, auto-implemented properties can be used if no additional logic is needed in the getter or setter.
Methods
- A method in C# is a block of code that can be called multiple times from different parts of a program.
- A method may or may not return a value.
Constructors
- A constructor in C# is a special method that is called when an object is created.
- A constructor is defined with the same name as the class and is used to initialize objects.
Creating Objects
- Objects of a class are created in C# using the
newkeyword, followed by the class name and any required parameters.
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