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Class and Instance Quiz

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Questions and Answers

What is a class in object-oriented programming?

A specific occurrence of an object

A compile time feature

A member function or method

A program-code-template for creating objects (correct)

What are instance variables in object-oriented programming?

Variables of type Class

Variables declared at run-time

Member variables specific to an object (correct)

Variables shared across the class

In certain languages, classes are only a compile time feature. What does this mean?

Classes are immutable

Classes are created during run-time

New classes cannot be declared at run-time (correct)

Classes are dynamically typed

What is an instance in object-oriented programming?

<p>A concrete occurrence of any object</p> Signup and view all the answers

What is a metaclass in object-oriented programming?

<p>A class that creates classes within itself</p> Signup and view all the answers

Study Notes

Classes in Object-Oriented Programming

A class is a blueprint or a template that defines the characteristics and behaviors of an object
It defines the properties and methods of an object

Instance Variables

Instance variables are data members of a class that are defined inside the class but outside any method
Each instance of the class has its own copy of the instance variables

Classes as a Compile-Time Feature

In certain languages, classes are only a compile-time feature, meaning they are only used during the compilation process
The class definition is not included in the generated code, and only the resulting object code is used at runtime

Instances

An instance is an object that is created from a class, with its own set of attributes and methods
Each instance has its own unique set of values for its instance variables

Metaclasses

A metaclass is a class that creates classes, allowing customization of the class creation process
Metaclasses are classes whose instances are classes

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Description

"Object-Oriented Programming: Class and Instance Quiz" Test your knowledge of classes and instances in object-oriented programming with this quiz. Explore concepts such as member variables, member functions, and object creation through constructors.