By Gastón C. Hillar
Key Features
Write reusable code that defines and makes items engage with one another
realize the variations in inheritance and polymorphism in Python, JavaScript, and C#
seize items from real-world components and create object-oriented code that represents them
Book Description
Learning Object-Oriented Programming is an easy-to-follow advisor choked with hands-on examples of options to universal issues of object-oriented code in Python, JavaScript, and C#. It starts off by means of assisting you to acknowledge gadgets from real-life eventualities and demonstrates that operating with them makes it easier to jot down code that's effortless to appreciate and reuse. you are going to discover ways to safeguard and conceal information with the information encapsulation good points of Python, JavaScript, and C#.
You will discover find out how to maximize code reuse by way of writing code in a position to operating with items of other forms, and notice the benefit of duck typing in either Python and JavaScript, once you paintings with interfaces and generics in C#. With a good realizing of interfaces, a number of inheritance, and composition, you are going to stream directly to refactor current code and to arrange your resource for simple upkeep and extension.
Learning Object-Oriented Programming may help you to make higher, more desirable, and reusable code.
What you'll learn
Generate cases in 3 programming languages: Python, JavaScript, and C#
customise constructors and destructors
paintings with a mix of entry modifiers, prefixes, houses, fields, attributes, and native variables to encapsulate and conceal data
make the most of specialization and the chance to overload or override members
Create reusable and more straightforward to take care of code
Use interfaces, generics, and a number of inheritance whilst available
About the Author
Gaston C. Hillar has been operating with desktops considering that he was once eight years outdated. within the early 80s, he begun programming with the mythical Texas TI-99/4A and Commodore sixty four domestic pcs. Gaston has a bachelor's measure in desktop technology and graduated with honors. He additionally holds an MBA, during which he graduated with a superb thesis. at the moment, Gaston is an self reliant IT advisor and a contract writer who's consistently trying to find new adventures round the world.
Table of Contents
items Everywhere
sessions and Instances
Encapsulation of Data
Inheritance and Specialization
Interfaces, a number of Inheritance, and Composition
Duck Typing and Generics
association of Object-oriented Code
Taking complete good thing about Object-oriented Programming
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Extra resources for Learning Object-Oriented Programming
Sample text
That trade-off might make an entirely different formatting algorithm more appropriate than the current one. htm (5 of 32) [21/08/2002 19:04:54] A Case Study trade-off balances formatting speed and storage requirements: It may be possible to decrease formatting time by caching more information. Because formatting algorithms tend to be complex, it's also desirable to keep them well-contained or—better yet—completely independent of the document structure. Ideally we could add a new kind of Glyph subclass without regard to the formatting algorithm.
Acquainted objects may request operations of each other, but they aren't responsible for each other. Acquaintance is a weaker relationship than aggregation and suggests much looser coupling between objects. In our diagrams, a plain arrowhead line denotes acquaintance. An arrowhead line with a diamond at its base denotes aggregation: It's easy to confuse aggregation and acquaintance, because they are often implemented in the same way. In Smalltalk, all variables are references to other objects. There's no distinction in the programming language between aggregation and acquaintance.
A set of abstract Glyph subclasses for each category of widget glyph. For example, an abstract class ScrollBar will augment the basic glyph interface to add general scrolling operations; Button is an abstract class that adds button-oriented operations; and so on. 2. A set of concrete subclasses for each abstract subclass that implement different look-and-feel standards. For example, ScrollBar might have MotifScrollBar and PMScrollBar subclasses that implement Motif and Presentation Manager-style scroll bars, respectively.