Learning Object-Oriented Programming

Book Image

Learning Object-Oriented Programming

By : Gaston C. Hillar

Book Image

Learning Object-Oriented Programming

By: Gaston C. Hillar

Overview of this book

Learning Object-Oriented Programming

Learning Object-Oriented Programming

Credits

About the Author

About the Author

Acknowledgments

Acknowledgments

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Free Chapter

Objects Everywhere

Objects Everywhere

Recognizing objects from nouns

Generating blueprints for objects

Recognizing attributes/fields

Recognizing actions from verbs – methods

Organizing the blueprints – classes

Object-oriented approaches in Python, JavaScript, and C#

Classes and Instances

Classes and Instances

Understanding classes and instances

Understanding constructors and destructors

Declaring classes in Python

Customizing constructors in Python

Customizing destructors in Python

Creating instances of classes in Python

Declaring classes in C#

Customizing constructors in C#

Customizing destructors in C#

Creating instances of classes in C#

Understanding that functions are objects in JavaScript

Working with constructor functions in JavaScript

Creating instances in JavaScript

Encapsulation of Data

Encapsulation of Data

Understanding the different members of a class

Protecting and hiding data

Working with properties

Understanding the difference between mutability and immutability

Encapsulating data in Python

Encapsulating data in C#

Encapsulating data in JavaScript

Inheritance and Specialization

Inheritance and Specialization

Using classes to abstract behavior

Understanding inheritance

Understanding method overloading and overriding

Understanding operator overloading

Taking advantage of polymorphism

Working with simple inheritance in Python

Working with simple inheritance in C#

Working with the prototype-based inheritance in JavaScript

Interfaces, Multiple Inheritance, and Composition

Interfaces, Multiple Inheritance, and Composition

Understanding the requirement to work with multiple base classes

Working with multiple inheritance in Python

Interfaces and multiple inheritance in C#

Working with composition in JavaScript

Duck Typing and Generics

Duck Typing and Generics

Understanding parametric polymorphism and duck typing

Working with duck typing in Python

Working with generics in C#

Working with duck typing in JavaScript

Organization of Object-Oriented Code

Organization of Object-Oriented Code

Thinking about the best ways to organize code

Organizing object-oriented code in Python

Organizing object-oriented code in C#

Organizing object-oriented code in JavaScript

Taking Full Advantage of Object-Oriented Programming

Taking Full Advantage of Object-Oriented Programming

Putting together all the pieces of the object-oriented puzzle

Refactoring existing code in Python

Refactoring existing code in C#

Refactoring existing code in JavaScript

Index

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Chapter 2. Classes and Instances

In this chapter, we will start generating blueprints to create objects in each of the three programming languages: Python, JavaScript, and C#. We will:

Understand the differences between classes, prototypes, and instances in object-oriented programming
Learn an object's lifecycle and how object constructors and destructors work
Declare classes in Python and C# and use workarounds to have a similar feature in JavaScript
Customize the process that takes place when you create instances in Python, C#, and JavaScript
Customize the process that takes place when you destroy instances in Python, C#, and JavaScript
Create different types of objects in Python, C#, and JavaScript