Object-Oriented Programming Concepts

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Questions and Answers

Which object-oriented programming concept focuses on simplifying complex systems by only representing essential features?

  • Encapsulation
  • Inheritance
  • Polymorphism
  • Abstraction (correct)

A class is analogous to which real-world concept in object-oriented programming?

  • A finished house
  • An individual brick
  • A construction worker
  • A blueprint for a house (correct)

What is the primary benefit of encapsulation in object-oriented programming?

  • It enables objects to take on multiple forms.
  • It simplifies the interface of an object, hiding its internal workings. (correct)
  • It reduces the amount of code needed in a program.
  • It allows objects to inherit properties from other objects.

In object-oriented programming, what is the significance of a 'constructor' method?

<p>It assigns initial values to an object's properties when it is created. (A)</p> Signup and view all the answers

Which of the following describes a 'type of' relationship between classes?

<p>Inheritance (A)</p> Signup and view all the answers

If a subclass overrides a method from its superclass, which object-oriented programming principle is being demonstrated?

<p>Polymorphism (A)</p> Signup and view all the answers

What does it mean to 'instantiate' a class in object-oriented programming?

<p>To create an object from a class, allocating memory for it (A)</p> Signup and view all the answers

Why are property procedures useful within a class?

<p>They can validate data assigned to properties. (D)</p> Signup and view all the answers

In the context of object-oriented programming, what is the 'state' of an object?

<p>The collective values assigned to the object's properties at a given time (C)</p> Signup and view all the answers

Which concept allows different object types to respond to the same method call in their own specific way?

<p>Polymorphism (C)</p> Signup and view all the answers

Flashcards

Abstraction

Focusing on relevant data and tasks while ignoring irrelevant details to simplify development.

Class

A template for creating objects, defining their attributes (properties) and operations (methods).

Encapsulation

Bundling data and methods that operate on the data, protecting it from outside interference.

Inheritance

A class derives properties and methods from another class, forming a hierarchy of classes.

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Object

An object represents a real-world entity of interest to a software application.

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Polymorphism

Subclasses can implement inherited methods in their own way, providing specific behaviors.

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Properties

Properties are coded as public variables or property procedures within the class.

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Methods

Programs within a class, coded as procedures or functions, defining an object's behavior

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Constructor

Assigning initial values to properties when an object is created from a class.

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State

The collective values assigned to an object's properties at a given time.

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