Android development is hot, and many programmers are interested in joining the fun. However, because this technology is based on Java, you should first obtain a solid grasp of the Java language and its foundational APIs to improve your chances of succeeding as an Android app developer. After all, you will be busy learning the architecture of an Android app, the various Android-specific APIs, and Android-specific tools. If you do not already know Java fundamentals, you will probably end up with a massive headache from also having to quickly cram those fundamentals into your knowledge base. Learn Java for Android Development teaches programmers of any skill level the essential Java language and foundational Java API skills that must be learned to improve the programmer’s s chances of succeeding as an Android app developer. Each of the book’s 10 chapters provides an exercise section that gives you the opportunity to reinforce your understanding of the chapter’s s material. Answers to the book’s s more than 300 exercises are provided in an appendix. Once you complete this book, you will be ready to dive into Android, and you can start that journey by obtaining a copy of Beginning Android 2. Additionally, author Jeff Friesen will provide supplementary material (such as 6 more chapters) on his javajeff.mb.ca website, available over the next few months following this book's release. What you'll learn The Java language: This book provides complete coverage of nearly every pre-Java version 7 language feature (native methods are briefly mentioned but not formally covered). Starting with those features related to classes and objects, you progress to object-oriented features related to inheritance, polymorphism, and interfaces. You then explore the advanced language features for nested types, packages, static imports, exceptions, assertions, annotations, generics, and enums. Continuing, you investigate strictfp, class literals, synchronized, volatile, the enhanced for loop statement, autoboxing/unboxing, and transient fields. The book also briefly presents most (if not all) of Java version 7’s language features, although not much is said about closures or modules (which were not finalized at the time of writing). Java APIs: In addition to Object and APIs related to exceptions, you explore Math, StrictMath, BigDecimal, BigInteger, Package, Boolean, Character, Byte, Short, Integer, Long, Float, Double, Number, the References API, the Reflection API, String, StringBuffer, System, the Threading API, the collections framework, the concurrency utilities, the internationalization APIs, the Preferences API, Random, the Regular Expressions API, File, RandomAccessFile, stream classes, and writer/reader classes. You will also get a tiny taste of Swing in the context of internationalization. Tools: You will learn how to use the JDK’s javac (compiler), java (application launcher), javadoc (Java documentation generator), and jar (Java archive creator, updater, and extractor) tools. You will also receive an introduction to the NetBeans and Eclipse integrated development environments. Although you can develop Android apps without NetBeans or Eclipse, working with these IDEs is much more pleasant. Who this book is for This book is for any programmer (including existing Java programmers and Objective-C (iPhone/iPad) programmers) of any skill level who needs to obtain a solid understanding of the Java language and foundational Java APIs before jumping into Android app development.
Android development is hot, and many programmers are interested in joining the fun. However, because this technology is based on Java, you should first obtain a solid grasp of the Java language and its foundational APIs to improve your chances of succeeding...
评分Android development is hot, and many programmers are interested in joining the fun. However, because this technology is based on Java, you should first obtain a solid grasp of the Java language and its foundational APIs to improve your chances of succeeding...
评分Android development is hot, and many programmers are interested in joining the fun. However, because this technology is based on Java, you should first obtain a solid grasp of the Java language and its foundational APIs to improve your chances of succeeding...
评分Android development is hot, and many programmers are interested in joining the fun. However, because this technology is based on Java, you should first obtain a solid grasp of the Java language and its foundational APIs to improve your chances of succeeding...
评分Android development is hot, and many programmers are interested in joining the fun. However, because this technology is based on Java, you should first obtain a solid grasp of the Java language and its foundational APIs to improve your chances of succeeding...
从技术深度的角度来看,《Learn Java for Android Development》成功地在“入门友好”和“技术深度”之间找到了一个绝妙的平衡点。它避开了那些仅停留在表面调用的浅薄教程,而是深入到了Java语言特性如何映射到Android框架的底层逻辑。例如,它详尽解释了接口(Interface)在Android组件化开发中的核心作用,以及如何利用Java的泛型来提高代码的类型安全性和复用性,这些都是真正决定一个开发者上限的关键技能。我喜欢它在讲解完“What”和“How”之后,还会花时间讨论“When”和“Why not”。这种批判性的思维培养,让我不仅仅停留在能跑起来的阶段,而是开始思考什么才是“最佳实践”。虽然书里没有涉及最新的Jetpack架构组件的全部细节,但这恰恰是它的优势——它为你打下了不可动摇的语言和平台基础,让你在未来学习Compose或Coroutines这些新技术时,能更快地吸收其背后的Java/Kotlin原理,而不是被表面的语法糖所迷惑。这本书提供的知识,是具有长期价值的基石。
评分我对这本书的结构设计给予高度评价,它像一个精心设计的迷宫,每一步都有清晰的指示牌,但又让你充满了探索的欲望。它采取了一种螺旋上升的学习路径,即一个核心概念会在不同的章节以不同的深度被反复提及和加深。例如,第一次接触到多线程的概念时,只是简单地用一个异步任务来处理网络请求;但在后面的章节,当涉及到数据库操作和性能优化时,作者又会回过头来,用更复杂的线程池管理和Handler机制来重构之前的代码。这种重复和递进,让知识点不是孤立地存在,而是紧密地编织在一起,形成了一个坚固的网络。我发现自己很少需要频繁地翻阅前面的章节去复习,因为新的知识点总会巧妙地将旧知识点串联起来。如果说这是一次长途旅行,那么这本书就是一本极其详尽的旅行指南,它不仅告诉你景点在哪里,还为你规划了最佳的路线,确保你在体力、心力上都能跟得上节奏。
评分这本书的实操性简直无懈可击,它真正做到了“学以致用”。我以前买过几本号称是实战的书,结果代码示例要么版本老旧,要么依赖一堆复杂的第三方库,光是配置环境就耗费了我好几天时间。但《Learn Java for Android Development》的案例都是基于最稳定、最原生的Android SDK功能构建的,保证了代码的可持续性和可移植性。作者似乎深谙新手在调试过程中会遇到的坑,几乎在每一个关键步骤都会设置“陷阱警示”,提前指出常见的NullPointerException、资源未找到等错误,并给出精确的定位和修复思路。这极大地减少了我因调试小错误而产生的挫败感。特别是关于UI布局和事件处理的那几章,讲解得尤为细致,它没有直接跳到ConstraintLayout这种高级布局,而是从LinearLayout和RelativeLayout开始,让你充分理解View的绘制流程和测量布局的原理,这对于以后你必须面对复杂定制化View时,会显得尤为重要。可以说,这本书不仅教你搭积木,更教你理解积木的材料和结构。
评分这本书简直是为我这种想从零开始构建移动应用的菜鸟量身定做的!我之前对Java也就是略有耳闻,对Android开发更是两眼一抹黑,打开其他一些厚重的技术手册总觉得压力山大。但《Learn Java for Android Development》完全没有那种高高在上的感觉。它的开篇就用一种极其友好的方式,把Java的基础语法点掰开了揉碎了讲,比如变量、循环、面向对象这些概念,不是那种干巴巴的理论堆砌,而是紧密结合着Android的实际场景来阐述。我记得刚开始学到Activity生命周期的时候,我还在想这和Java有什么关系,结果作者马上就用一个例子告诉我,理解Java的类和方法是如何被Android框架调用的,是多么关键的一步。而且,它没有贪多嚼不烂,而是选择性地挑选了移动开发中最常用的那部分Java特性进行深度挖掘,避免了初学者在浩如烟海的Java标准库中迷失方向。最让我感到贴心的是,每学完一个小知识点,后面紧跟着的都是可以立即在模拟器上跑起来的小Demo,那种亲手看到代码运行起来的成就感,是单纯看文字描述绝对无法替代的。如果说有什么可以改进的地方,那就是基础示例的复杂度可以再稍微增加那么一点点,让读者在熟悉了基本功之后,能更快地过渡到项目实战的心流中去,但就入门友好度而言,这本书无疑是上乘之作。
评分这本书的叙事节奏感掌握得非常到位,它不是那种教科书式的、平铺直叙的讲解,更像是一位经验丰富的工程师在旁边手把手地指导你完成一个项目。我尤其欣赏作者在讲解复杂概念时所采取的类比手法。比如,当讲到内存管理和垃圾回收机制时,作者没有直接抛出JVM的细节,而是将其比喻成一个图书馆的图书管理员,帮你清晰地理解资源是如何被分配和释放的,这对于初次接触系统底层概念的开发者来说,无疑是极大的福音。更让我眼前一亮的是,它对“为什么”的探讨比“怎么做”要深入得多。很多教程只告诉你某个函数该怎么写,但这本书会花篇幅解释为什么Android需要这样做,背后的设计哲学是什么,这使得我的知识体系建立得非常牢固,而不是死记硬背的API调用。我感觉我不是在学习一门语言的语法,而是在学习一种解决移动端问题的思维模式。当然,对于那些已经有扎实Java基础的读者来说,前半部分的冗余度会稍微高一些,但考虑到这本书的目标受众是Android开发新手,这种详尽的铺垫绝对是必要的牺牲,保证了任何背景的读者都能平稳起步。
评分看到最后一章的总结的时候,作者说还有6章没包含在书里面……还好作者很负责,剩余的章节在作者网站上可以免费下载(http://tutortutor.ca/cgi-bin/makepage.cgi?/books/ljfad),但是只有第11、13和16章。
评分看到最后一章的总结的时候,作者说还有6章没包含在书里面……还好作者很负责,剩余的章节在作者网站上可以免费下载(http://tutortutor.ca/cgi-bin/makepage.cgi?/books/ljfad),但是只有第11、13和16章。
评分看到最后一章的总结的时候,作者说还有6章没包含在书里面……还好作者很负责,剩余的章节在作者网站上可以免费下载(http://tutortutor.ca/cgi-bin/makepage.cgi?/books/ljfad),但是只有第11、13和16章。
评分刚刚印了一本,正要开始学习~
评分java入门
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