Objects and Classes in C++

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Questions and Answers

What is an object in object-oriented programming?

  • A representation of an entity in the real world with a unique identity, state, and behaviors (correct)
  • A variable that defines data fields
  • A construct that defines objects of the same type
  • A function that defines behaviors

What does the state of an object consist of?

  • Only functions with their current values
  • Only a set of data fields with their current values
  • A set of data fields with their current values (correct)
  • A set of data fields and functions with their current values

What are constructors in a class used for?

  • Defining behaviors for objects
  • Representing entities in the real world
  • Defining properties for objects
  • Invoked to construct objects from the class (correct)

What does a class provide in object-oriented programming?

<p>All of the above (D)</p> Signup and view all the answers

How are classes and objects related in object-oriented programming?

<p>Classes define the properties and behaviors for objects of the same type (D)</p> Signup and view all the answers

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Study Notes

Object-Oriented Programming Fundamentals

Objects

  • An object in object-oriented programming represents a real-world entity or concept, having properties and behaviors.
  • Objects have state and behavior, and each object has its own set of attributes (data) and methods (functions).

Object State

  • The state of an object consists of its properties or attributes, which describe the characteristics of the object.
  • An object's state is defined by its attributes, and each object has its own set of attributes.

Constructors

  • A constructor in a class is a special method used to initialize objects when they are created.
  • Constructors are used to set the initial state of an object when it is instantiated.

Classes

  • A class in object-oriented programming provides a blueprint or template for creating objects.
  • A class defines the properties and behaviors of an object, and objects are instances of a class.

Classes and Objects

  • A class is a blueprint or template, and an object is an instance of that class.
  • Multiple objects can be created from a single class, and each object has its own set of attributes and methods.

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