Head First Design Patterns
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- Type：Epub+TxT+PDF+Mobi
- Create Date：2022-05-02 05:51:20
- Update Date：2025-09-06
- Status：finish
- Author：Eric Freeman
- ISBN：8173664668
- Environment：PC/Android/iPhone/iPad/Kindle
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Summary
You're not alone。
At any given moment， somewhere in the world someone struggles with the same software design problems you have。 You know you don't want to reinvent the wheel （or worse， a flat tire）， so you look to Design Patterns--the lessons learned by those who've faced the same 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 else。 Something more challenging。 Something more complex。 Something more fun。
You want to learn about the patterns that matter--why to use them， when to use them， how to use them （and when NOT to use them）。 But you don't just want to see how patterns look in a book， you want to know how they look "in the wild"。 In their native environment。 In other words， in real world applications。 You also want to learn how patterns are used in the Java API， and how to exploit Java's built-in pattern support in your own code。
You want to learn the real OO design principles and why everything your boss told you about inheritance might be wrong （and what to do instead）。 You want to learn how those principles will help the next time you're up a creek without a design pattern。
Most importantly， you want to learn the "secret language" of Design Patterns so that you can hold your own with your co-worker （and impress cocktail party guests） when he casually mentions his stunningly clever use of Command， Facade， Proxy， and Factory in between sips of a martini。 You'll easily counter with your deep understanding of why Singleton isn't as simple as it sounds， how the Factory is so often misunderstood， or on the real relationship between Decorator， Facade and Adapter。
With Head First Design Patterns， you'll avoid the embarrassment of thinking Decorator is something from the "Trading Spaces" show。 Best of all， in a way that won't put you to sleep！ We think your time is too important （and too short） to spend it struggling with academic texts。
If you've read a Head First book， you know what to expect--a visually rich format designed for the way your brain works。 Using the latest research in neurobiology， cognitive science， and learning theory， Head First Design Patterns will load patterns into your brain in a way that sticks。 In a way that lets you put them to work immediately。 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。
At any given moment， somewhere in the world someone struggles with the same software design problems you have。 You know you don't want to reinvent the wheel （or worse， a flat tire）， so you look to Design Patterns--the lessons learned by those who've faced the same 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 else。 Something more challenging。 Something more complex。 Something more fun。
You want to learn about the patterns that matter--why to use them， when to use them， how to use them （and when NOT to use them）。 But you don't just want to see how patterns look in a book， you want to know how they look "in the wild"。 In their native environment。 In other words， in real world applications。 You also want to learn how patterns are used in the Java API， and how to exploit Java's built-in pattern support in your own code。
You want to learn the real OO design principles and why everything your boss told you about inheritance might be wrong （and what to do instead）。 You want to learn how those principles will help the next time you're up a creek without a design pattern。
Most importantly， you want to learn the "secret language" of Design Patterns so that you can hold your own with your co-worker （and impress cocktail party guests） when he casually mentions his stunningly clever use of Command， Facade， Proxy， and Factory in between sips of a martini。 You'll easily counter with your deep understanding of why Singleton isn't as simple as it sounds， how the Factory is so often misunderstood， or on the real relationship between Decorator， Facade and Adapter。
With Head First Design Patterns， you'll avoid the embarrassment of thinking Decorator is something from the "Trading Spaces" show。 Best of all， in a way that won't put you to sleep！ We think your time is too important （and too short） to spend it struggling with academic texts。
If you've read a Head First book， you know what to expect--a visually rich format designed for the way your brain works。 Using the latest research in neurobiology， cognitive science， and learning theory， Head First Design Patterns will load patterns into your brain in a way that sticks。 In a way that lets you put them to work immediately。 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。
Reviews
Jamie
，
fun and informative
Anjum Haz
，
This is a book my colleague Jitu vai recommends a lot。 I started reading this book some time last year and picked up now and then when I managed some time after work and personal life， to study CS stuff。I like to read books。 Online tutorials are a great way to practice coding， but for mastering theories and stuff， books help me a lot。 The charm about Head First books is- they throw a problem to you first， then approach solving that problem with a naive way， which generally comes to our minds。 Th This is a book my colleague Jitu vai recommends a lot。 I started reading this book some time last year and picked up now and then when I managed some time after work and personal life， to study CS stuff。I like to read books。 Online tutorials are a great way to practice coding， but for mastering theories and stuff， books help me a lot。 The charm about Head First books is- they throw a problem to you first， then approach solving that problem with a naive way， which generally comes to our minds。 Then they point you towards brainstorming a more suitable solution。 In the meantime， you have just learned a new design pattern！I remember my pathetic attempts to understand design patterns in grad school。 I could grasp the factory， decorator and one or two more patterns， all the rest seemed “wait， what is the usage of this again？” to me。 I guess， you need some pace of time to understand 12 different design patterns。 Otherwise， our brains like to tangle too many patterns into a khichuri。This time I didn’t memorize the Singleton pattern because I have a class test in 2 hours where I need to pass。 Also， I didn’t curse it for being meaningless。 Rather I found this one more interesting！ My other favorites would be Observer， Adapter and Template patterns。Give the first chapter of this book a try if you think “Nyah， I never enjoyed any reading materials on design patterns， but I am up for learning them”。 More and more examples help us to think in the way of patterns， which Head First provides。 I hope to re-read my highlights from this book to master the patterns over time。 。。。more
Rob
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This is a great book not just on design patterns but also the object-oriented design principles that underlie them。Each pattern is explained thoroughly with text and annotated diagrams。 Complexity is built up gradually with each step being explained and justified。 Questions are anticipated and answered satisfactorily。Every pattern is explained in the context of the object-oriented design principles that are introduced alongside them。It covers a selection of the most important patterns from the o This is a great book not just on design patterns but also the object-oriented design principles that underlie them。Each pattern is explained thoroughly with text and annotated diagrams。 Complexity is built up gradually with each step being explained and justified。 Questions are anticipated and answered satisfactorily。Every pattern is explained in the context of the object-oriented design principles that are introduced alongside them。It covers a selection of the most important patterns from the original Design Patterns book。The style is irreverent and the text is relatively light and digestible but the concepts are heavy。 。。。more
Anurag Bhandari
，
After banging my head multiple times in attempts to learn design patterns from various online resources — patterns websites， free ebooks， Wikipedia — I finally found one that taught me well。 So well that I'd go as far as to say that this is the only text that helps make sense of the complex and formal world of design patterns。The book covers the most commonly used 'fundamental' patterns in depth。 At the start， I was a bit apprehensive about the enormous amounts of marginalia， character portraits After banging my head multiple times in attempts to learn design patterns from various online resources — patterns websites， free ebooks， Wikipedia — I finally found one that taught me well。 So well that I'd go as far as to say that this is the only text that helps make sense of the complex and formal world of design patterns。The book covers the most commonly used 'fundamental' patterns in depth。 At the start， I was a bit apprehensive about the enormous amounts of marginalia， character portraits， and stuff littering the pages。 I perceived them as superficial and unnecessary。 I was so very wrong。 It was only when I moved through the pages and chapters that it all came together。 Reflecting back， I don't think I would remember much of it hadn't it been for the intended redundancy and visual elements。That makes me wonder how much trouble the authors had to go through to write story-like yet technically accurate chapters。 The detail with which each pattern is described leaves little room for further academic exploration。Often， the authors approach a problem starting with a simplistic solution only to refactor it later using a design pattern to produce a flexible and more elegant solution。 I found this approach resonated better with real-world experience than describing a solution with the pattern from the get-go。Exercises are very well crafted， varied and plenty。 I found myself unable to skip them。If you are looking to design better software， look no further。 Just pick up this book and stick to the end。 You'll thank me later。 。。。more
Alberto
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This book is a MUST-HAVE for getting to know Object Oriented Design patterns。
Artem Shananin
，
the best book to start learning Design Patterns
Matthew Horvat
，
While starting to attempt to get better at software engineering as I looked to expand my career， I went looking for theory books。 This book covers and explains design patterns， but does it in a way where it's not overwhelming and overly technical。Throughout the book there are plenty of examples， some super contrived， but each one as the case studies are explored allows for in depth discussions of the design patterns。While they don't necessarily cover all of the design patterns from the Gang Of F While starting to attempt to get better at software engineering as I looked to expand my career， I went looking for theory books。 This book covers and explains design patterns， but does it in a way where it's not overwhelming and overly technical。Throughout the book there are plenty of examples， some super contrived， but each one as the case studies are explored allows for in depth discussions of the design patterns。While they don't necessarily cover all of the design patterns from the Gang Of Four book， the cover enough to allow the user to use them effectively and point the reader to the Gang for a better and more in depth discussion。 。。。more
Gaurav Singh
，
The book is worth 10 times its price。 It makes an incredibly boring topic into an interesting read。 Well done to the authors！
Sara Ahmed
，
I highly recommend it for programmers， the book is so funny and helps you to understand such a big topic as design patterns is an easy way。
mobydickens
，
I just hate reading dev books。 This book in particular is in a style I can't stand， where it tries to make everything FUN， FUN FUN！ Just give me the facts。 Please。 That said， underneath all the fluff， this book had great information on design patterns， and was overall good for me to read。 I don't know how much I retained， but repetition， hopefully， will make these concepts stick eventually。 I just hate reading dev books。 This book in particular is in a style I can't stand， where it tries to make everything FUN， FUN FUN！ Just give me the facts。 Please。 That said， underneath all the fluff， this book had great information on design patterns， and was overall good for me to read。 I don't know how much I retained， but repetition， hopefully， will make these concepts stick eventually。 。。。more
Dmitry Davydov
，
Since the beginning of my carrer I was thinking about OOP and it's advantages over functional or procedural programming。 This book helped me to fathom all intricacies about design patterns and greatly expanded my understanding of the software engineering field。 The book is structured as learning experience that bombards you with information that comes in different forms: dialogues between patterns， crosswords， songs， open questions， etc; all of which is intended to stay in your memory as long as Since the beginning of my carrer I was thinking about OOP and it's advantages over functional or procedural programming。 This book helped me to fathom all intricacies about design patterns and greatly expanded my understanding of the software engineering field。 The book is structured as learning experience that bombards you with information that comes in different forms: dialogues between patterns， crosswords， songs， open questions， etc; all of which is intended to stay in your memory as long as possible and train your sense of patterns。 。。。more
Suraj Kumar
，
Expressed curiosity before presenting any new Design patterns。
Daniel
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Terrible， so annoying to read。 If you're not familiar with the patterns it will introduce you but it's very outdated。 Terrible， so annoying to read。 If you're not familiar with the patterns it will introduce you but it's very outdated。 。。。more
Adam Smith
，
Very helpful and easy to follow
Hưng Dương
，
4。5
Michael S
，
I loved this book。 I still remember every design pattern from it about five years later。 However， I can't say I recommend reading this book; 95% of the time， this knowledge just makes me cringe when I read code which doesn't use these patterns。 This will make you write better code， but it will give you so much pain when reading the code of others。 I loved this book。 I still remember every design pattern from it about five years later。 However， I can't say I recommend reading this book; 95% of the time， this knowledge just makes me cringe when I read code which doesn't use these patterns。 This will make you write better code， but it will give you so much pain when reading the code of others。 。。。more
Shobha。s。kamathgmail。com kamath
，
can't imagine design patterns can be learnt in a fun way。 the characters in the several skits of this book are very funny。 the best book to learn design patterns with fun and u won't be bored at all。。I read around 70 pages in 2 days。。 can't imagine design patterns can be learnt in a fun way。 the characters in the several skits of this book are very funny。 the best book to learn design patterns with fun and u won't be bored at all。。I read around 70 pages in 2 days。。 。。。more
Farzin
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M
，
Read the first 2-3 chapters to get a sense of why design patterns are important/relevant。Then proceeded to look at various Github compendiums of examples in MODERN programming languages。A few of these design patterns are still relevant as per today， but I don't get all the hype！ Read the first 2-3 chapters to get a sense of why design patterns are important/relevant。Then proceeded to look at various Github compendiums of examples in MODERN programming languages。A few of these design patterns are still relevant as per today， but I don't get all the hype！ 。。。more
Krish Vikram
，
Good Book for starting Design Patterns。
Nicholas Wilhelm
，
Really enjoyed how this book was formatted。 You could tell it took some deep thought in certain sections。 The no dumb questions and playing devils advocate really helped me understand the material。
سلمى
，
“The ducks are going to help you understand how patterns can work together in the same solution”Introduces essential and important concepts of software architecture in fun and easy to understand ways。
Bhavani Ravi
，
This book is much better than Gang of four to get started with design patterns， The examples are lot more relatable and use case driven
Abdlrahman Ahmed
，
It's really nice book， I liked the way it approaches; trying to inject the design concept into your brain by starting with the problem first， then go with you in steps to find the best solution for the problem which will be the target design pattern at the end， and during this journey， it highlights very important design principles， it's really Awesome book。 It's really nice book， I liked the way it approaches; trying to inject the design concept into your brain by starting with the problem first， then go with you in steps to find the best solution for the problem which will be the target design pattern at the end， and during this journey， it highlights very important design principles， it's really Awesome book。 。。。more
Prashant
，
This is more than expectation 。 It is very engaging and smooth 。 While reading you feel as if Author is talking to you personally ！ Patterns are implemented in Java and with good examples 。
هدى
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I learned a lot from the book。
Naveen Mittal
，
Really like the format。 Looking for my next head first book。
Nelson Wang
，
A great introduction to design patterns。
Nick Keighley
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Perhaps not my type of technical book。 To me a book addressing a technical subject is like K&R。 Short， Direct， Not Repetitive and doesn't have cartoons。 HFB fails on all points。 Plus it has very wide margins and the cover includes a cleavage shot （all programmers are boys？ girls can program too！）。 Oh， and if I read another example that includes pizza， I will scream。The cover on the new edition is less objectionable。 Perhaps not my type of technical book。 To me a book addressing a technical subject is like K&R。 Short， Direct， Not Repetitive and doesn't have cartoons。 HFB fails on all points。 Plus it has very wide margins and the cover includes a cleavage shot （all programmers are boys？ girls can program too！）。 Oh， and if I read another example that includes pizza， I will scream。The cover on the new edition is less objectionable。 。。。more
Devansh Maurya
，