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OOP Concepts: Classes and Objects

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Questions and Answers

What is the primary purpose of Object-Oriented Programming?

To relate programming with the real world (correct)

To write shorter code

To make code more complex

To use fewer variables

What is a class in Object-Oriented Programming?

An instance of an object

A collection of variables

A blueprint or template for objects (correct)

A function that performs a specific task

What do objects inherit from their class?

Both properties and behaviors (correct)

Only properties

Neither properties nor behaviors

Only behaviors

How is a class defined in PHP?

Using the <code>class</code> keyword Signup and view all the answers

What is an object in Object-Oriented Programming?

An instance or occurrence of a class Signup and view all the answers

What is the relationship between a class and its objects?

A class is a blueprint for its objects Signup and view all the answers

What is an example of a property of a `Car` class?

Make Signup and view all the answers

What happens when an object is created from a class?

The object inherits all properties and behaviors from the class Signup and view all the answers

What is the purpose of curly braces in defining a PHP class?

To define a class Signup and view all the answers

Study Notes

OOP Concepts

OOP is a programming paradigm that relates to the real world by considering everything as an object, which holds its own properties (data) and behaviors (functions).

Classes and Objects

A class is a blueprint or template used to hold objects along with their behavior and properties.
An object is an instance or occurrence of a class.
Example: A Car class can have properties like make, color, year, speed limit, etc., and each object (Audi, Mercedes, BMW, etc.) created from the class inherits all the properties and behaviors, but with different values.

Defining a PHP Class

A class is defined in PHP using the class keyword, followed by the name of the class and a pair of curly braces ({}).

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Description

Understand the basics of object-oriented programming, including classes, objects, and their properties and behaviors.