Head First Design Patterns: Building Extensible and Maintainable Object-Oriented Software
- Downloads：7885
- Type：Epub+TxT+PDF+Mobi
- Create Date：2021-03-05 03:17:10
- Update Date：2025-09-06
- Status：finish
- Author：Eric Freeman
- ISBN：149207800X
- Environment：PC/Android/iPhone/iPad/Kindle
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Summary
You know you don't want to reinvent the wheel， so you look to design patterns--the lessons learned by those who've faced the same software design problems。 With design patterns， you get to take advantage of the best practices and experience of others so that you can spend your time on something more challenging。 Something more fun。 This book shows you the patterns that matter， when to use them and why， how to apply them to your own designs， and the object-oriented design principles on which the patterns are based。
Most importantly， you want to learn design patterns in a way that won't put you to sleep。 If you've read a Head First book， you know what to expect--a visually rich format designed for the way your brain works。 Newly updated and expanded， Head First Design Patterns， 2E， will load patterns into your brain in a way that sticks。 In a way that makes you better at solving software design problems and better at speaking the language of patterns with others on your team。
Join the hundreds of thousands of developers who have already improved their object-oriented design skills through Head First Design Patterns。
Most importantly， you want to learn design patterns in a way that won't put you to sleep。 If you've read a Head First book， you know what to expect--a visually rich format designed for the way your brain works。 Newly updated and expanded， Head First Design Patterns， 2E， will load patterns into your brain in a way that sticks。 In a way that makes you better at solving software design problems and better at speaking the language of patterns with others on your team。
Join the hundreds of thousands of developers who have already improved their object-oriented design skills through Head First Design Patterns。
Reviews
rahimliparviz
，
In overall this book was great but the only thing I do not like was about explainations of patterns in appendix section。 Explanations were not sufficent and also I would like to see at least one normal example per patterns in appendix section。
Thang Nguyen
，
very easy to read books。 Very good for beginner。 The author explained the concept very well。
Olezh Lviv
，
Відверто， надзвичайно крута книга для розуміння патернів проектування。 До того я безумовно мав справу з ними， і читав на різних ресурсах - дуфекторі， метаніт， тощо。 Але тут мені вдалося це зрозуміти на зовсім іншому рівні абстракції。Специфічний стиль викладання。 Для декого це може здатись дитячим， якісь картинки， ролі， але як людина яка захоплюється психологією 10 років скажу що інтерактивний спосіб навчання є дуже високорезультативним і дозволяє більше відчути， чим завчити。Книгу однозначно реко Відверто， надзвичайно крута книга для розуміння патернів проектування。 До того я безумовно мав справу з ними， і читав на різних ресурсах - дуфекторі， метаніт， тощо。 Але тут мені вдалося це зрозуміти на зовсім іншому рівні абстракції。Специфічний стиль викладання。 Для декого це може здатись дитячим， якісь картинки， ролі， але як людина яка захоплюється психологією 10 років скажу що інтерактивний спосіб навчання є дуже високорезультативним і дозволяє більше відчути， чим завчити。Книгу однозначно рекомендую！ 👍 。。。more
Xianshun Chen
，
Highly recommended for young programmers who like to code and reason well
Stavro
，
If you want to get an starting idea on design patterns， this is the book to go。 It will help you a lot， but requires a little bit of practice in real life。
Musti
，
This is honestly the best experience i had improving my software development skills。The examples are great。 You get to do some exercises， that are mostly trivial， but even if they are not， it doesn't take you， like in many other programming related books， 2 hours， but merely 5 mins max to solve those。 This keeps you in the mindset and is not a motivational hurdle that you've got to jump over or feel bad about because you went around doing it。I learned many new things and am going to look for mor This is honestly the best experience i had improving my software development skills。The examples are great。 You get to do some exercises， that are mostly trivial， but even if they are not， it doesn't take you， like in many other programming related books， 2 hours， but merely 5 mins max to solve those。 This keeps you in the mindset and is not a motivational hurdle that you've got to jump over or feel bad about because you went around doing it。I learned many new things and am going to look for more "Head First" books to add to my shelves。 。。。more
Yanis
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Super livre， de très bon exemple， des explications， de l'humour。Un guide pratique， très bien structuré ！ Super livre， de très bon exemple， des explications， de l'humour。Un guide pratique， très bien structuré ！ 。。。more
Dimitar Ralev
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If you are on a lookout for a book on design patterns - you search can end here。It covers everything you need， and you'll be entertained along the way。 If you are on a lookout for a book on design patterns - you search can end here。It covers everything you need， and you'll be entertained along the way。 。。。more
Rhyne
，
This was a pretty helpful book in learning some new design patterns。 I picked it up as a refresher and to breath some life into some backend object oriented code I was writing。 I'd love to read something similar around functional programming！ This was a pretty helpful book in learning some new design patterns。 I picked it up as a refresher and to breath some life into some backend object oriented code I was writing。 I'd love to read something similar around functional programming！ 。。。more
Ajb
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Good in it's own territory ， actually it was perfect。 5/5 Good in it's own territory ， actually it was perfect。 5/5 。。。more
David Han
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Standard good head first style writing - covers the main design patterns in a format that is easy to read and digest。
Tauras
，
This book looks deceptively easy and lightweight， yet carries quite a lot of information。Definitely should be a go-to book for the introduction to Design Patterns。 Even if you're acquainted with the topic， the examples， brief summaries and the tone of the book work well as a refresher。 I'm also really happy that the author gave a fair amount of attention to explicitly discourage readers from applying patterns everywhere and overengineering unnecessarily。 Sometimes there's a temptation to flamboy This book looks deceptively easy and lightweight， yet carries quite a lot of information。Definitely should be a go-to book for the introduction to Design Patterns。 Even if you're acquainted with the topic， the examples， brief summaries and the tone of the book work well as a refresher。 I'm also really happy that the author gave a fair amount of attention to explicitly discourage readers from applying patterns everywhere and overengineering unnecessarily。 Sometimes there's a temptation to flamboyantly showoff what a complex system one can engineer， typically it's better not to。 Finally， I empathise with the author when talking about the importance of shared dictionary。 It's a great tool enabling efficiency， being succinct and having people on the same page。 However， for this to work， good foundations are crucial， i。e。 the dictionary should be shared and one must be certain that everyone in the conversation interpret used terminology in a similar way。 。。。more
Jeff Lucas
，
This book is either really good or really bad depending on what you wanted to get out of it。 I used it as a pre read for an Intro to Object Oriented Programming course。 For students not familar with the topics it was a good primer for the classroom conversations and deeper dives。
Alex Stancu
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Very easy to follow with a very playful style。 If you just want to skim very quickly through the most popular & used patterns， but at the same time get a quite decent understanding for each， this is the book。 Almost all of the examples are spot on （maybe except for the last 2-3 "left over" patterns）。 The explanations are detailed enough to make you understand each pattern well。 And， most importantly， it helps remember what each of them does， by using a lot of repetition。 Which you might think it Very easy to follow with a very playful style。 If you just want to skim very quickly through the most popular & used patterns， but at the same time get a quite decent understanding for each， this is the book。 Almost all of the examples are spot on （maybe except for the last 2-3 "left over" patterns）。 The explanations are detailed enough to make you understand each pattern well。 And， most importantly， it helps remember what each of them does， by using a lot of repetition。 Which you might think its annoying， but what it does is to stamp them better into your brain。 By the end of the book， you'll know them by heart。 I promise。 。。。more
Ashish Singh
，
Very interactive and easy book to understand and apply design patterns
Hojjat
，
The book describe common and important design Patterns and it include useful sample codes help you understand better them。 I suggest to beginners start with this book。
Toters App Library
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This is a required reading for every software engineer I hire。 It was the first book that really made me take off in the engineering world。
Colby
，
Really really good book to learn Design Patterns， mostly finished the book but ready to pick up another。 Lots of fluff， you won't be reading 600 pages。 I promise。 Really really good book to learn Design Patterns， mostly finished the book but ready to pick up another。 Lots of fluff， you won't be reading 600 pages。 I promise。 。。。more
Cioranu Mariana
，
Design pattern-urile sunt niste solutii generale la anumite probleme。 Este important sa le cunoastem nu neaparat pentru a le folosi dupa definitie， ci adaptate pe contextul nostru pentru a crea un cod lizibil。 Unele din cele mai importante sunt: Builder， Singleton， Method factory， Abstract factory， Facade， Composite， Adapter， Strategy， Decorator， Flyweight， State， Iterator， Proxy， Observer， Command， Template method， Mediator， Iterpreter， Chain of responsability， Bridge。， Memento。 Cartea merita c Design pattern-urile sunt niste solutii generale la anumite probleme。 Este important sa le cunoastem nu neaparat pentru a le folosi dupa definitie， ci adaptate pe contextul nostru pentru a crea un cod lizibil。 Unele din cele mai importante sunt: Builder， Singleton， Method factory， Abstract factory， Facade， Composite， Adapter， Strategy， Decorator， Flyweight， State， Iterator， Proxy， Observer， Command， Template method， Mediator， Iterpreter， Chain of responsability， Bridge。， Memento。 Cartea merita citita si recitita！ 。。。more
Fips
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Just not my style at all。
Gonzalo Cardenas
，
Never had so much fun reading a technical book。 The authors use multiple strategies and examples to teach you the concepts。 Definitely， a good book to get started with Design Patterns and Java。
Anh Tú
，
I love the ways this book introduces and explains the patterns。 Thanks to lots of illustrations， related topic conversations， and efforts that the authors put in this book， that make me feel that I was walking through a story and learn new things from it， rather than reading a technical book。Recommend it when you have some experience in the OO language first。
Alan Chan
，
Everyone can write articles， but not everyone can write well-organized articles。 Similarly， everyone can write code， but not everyone can write code with high maintainability， extensibility， and flexibility。 Design patterns can help you do that， and this book is an excellent start。
Erick Brownfield
，
Where most books in the category are about cold hard logic and little else， Head First Design Patterns brings a lot of personality and charm。 The examples and diagrams are engaging and help break up the drier parts。 Occasionally I would chuckle out loud from the ridiculousness， extraordinary considering I rarely laugh with even comedies。 It also does a good job of examining the problem and solution from many different angles， which is something I often do and appreciated。 In addition to its focu Where most books in the category are about cold hard logic and little else， Head First Design Patterns brings a lot of personality and charm。 The examples and diagrams are engaging and help break up the drier parts。 Occasionally I would chuckle out loud from the ridiculousness， extraordinary considering I rarely laugh with even comedies。 It also does a good job of examining the problem and solution from many different angles， which is something I often do and appreciated。 In addition to its focus on a few handful of widely used patterns， it also ties them back to other good OO design principles including SOLID。 While I enjoyed this book for the most part， it's somewhat verbose。 Most readers probably pick up this book instead of GoF to get a quick and easy primer to design patterns， only to pick up a book over 600 pages。 Was it entertaining and did a good job explaining？ Yes。 Could it have done so in half the pages？ Probably。 。。。more
Sardar
，
The patterns discussed in the book are basic patterns explained in every other book or article。 You can find a complete description of each pattern on Wikipedia。 The book is unique in the way they present each pattern， packaged with use-cases and opinions。 They deliberately repeat the same statements over and over again using different methods， helping you to remember each pattern better。 Definitely recommended for junior programmers。Con's: you probably won't find anything new if you know about The patterns discussed in the book are basic patterns explained in every other book or article。 You can find a complete description of each pattern on Wikipedia。 The book is unique in the way they present each pattern， packaged with use-cases and opinions。 They deliberately repeat the same statements over and over again using different methods， helping you to remember each pattern better。 Definitely recommended for junior programmers。Con's: you probably won't find anything new if you know about the basic patterns。 Some patterns are now considered to be "anti-" （eg。 Singleton， for a good reason）。 Some are still explained in the context that went out of fashion or is considered dangerous （eg。 Proxy， mainly described in the context of remote method invocation， which isn't the best way to integrate your services）。 。。。more
Filipe Ramos
，
Very good！Well written， and very easy to follow。 Both a good introduction and a good reference book for anyone interested in design patterns。
David Hunter
，
A very fun and friendly introduction to programming design patterns。
KAIDZ
，
There's some boring parts cause it's more focus on Java that can't be applied on my current used（Apex - Salesforce） but most of them found on the last 100 page only。 There's some boring parts cause it's more focus on Java that can't be applied on my current used（Apex - Salesforce） but most of them found on the last 100 page only。 。。。more
Marcin
，
very clear explanation
Dmitry Demidov
，