By Jeff Friesen
Starting Java 7 publications you thru this language and a big collection of platform APIs in accordance with the subsequent desk of contents: bankruptcy 1: Getting began with Java bankruptcy 2: getting to know sessions and items bankruptcy three: Exploring complicated Language positive aspects bankruptcy four: traveling Language APIs bankruptcy five: amassing items bankruptcy 6: traveling extra software APIs bankruptcy 7: growing and Enriching Graphical person Interfaces bankruptcy eight: Interacting with Filesystems bankruptcy nine: Interacting with Networks and Databases bankruptcy 10: Parsing, growing, and remodeling XML records bankruptcy eleven: operating with net prone bankruptcy 12: Java 7 Meets Android Appendix A: suggestions to workouts Appendix B: Scripting API and Dynamically Typed Language help Appendix C: Odds and Ends Appendix D: purposes Gallery bankruptcy 1 introduces you to Java and starts off to hide the Java language via concentrating on primary techniques reminiscent of reviews, identifiers, variables, expressions, and statements. bankruptcy 2 maintains to discover this language through proposing all of its gains for operating with periods and items. You find out about good points concerning classification statement and item construction, encapsulation, details hiding, inheritance, polymorphism, interfaces, and rubbish assortment. bankruptcy three makes a speciality of the extra complicated language positive aspects concerning nested sessions, applications, static imports, exceptions, assertions, annotations, generics, and enums. extra chapters will introduce you to the few positive factors no longer coated in Chapters 1 via three. bankruptcy four mostly strikes clear of protecting language good points (although it does introduce classification literals and strictfp) whereas targeting language-oriented APIs. You find out about Math, StrictMath, package deal, Primitive style Wrapper sessions, Reference, mirrored image, String, StringBuffer and StringBuilder, Threading, BigDecimal, and BigInteger during this bankruptcy. bankruptcy five starts to discover Java's application APIs by means of focusing principally at the Collections Framework. besides the fact that, it additionally discusses legacy collection-oriented APIs and the way to create your individual collections. bankruptcy 6 maintains to target software APIs by means of proposing the concurrency utilities besides the items and Random sessions. bankruptcy 7 strikes you clear of the command-line consumer interfaces that seem in past chapters and towards graphical person interfaces. You first find out about the summary Window Toolkit beginning, after which discover the Java origin periods by way of Swing and Java 2nd. Appendix C explores Accessibility and Drag and Drop. bankruptcy eight explores filesystem-oriented I/O by way of the dossier, RandomAccessFile, move, and writer/reader sessions. New I/O is roofed in Appendix C. bankruptcy nine introduces you to Java's community APIs, akin to sockets. It additionally introduces you to the JDBC API for interacting with databases. bankruptcy 10 dives into Java's XML help by way of first providing an advent to XML (including DTDs and schemas). It subsequent explores the SAX, DOM, StAX, XPath, and XSLT APIs. It even in short touches at the Validation API. whereas exploring XPath, you come upon namespace contexts, extension features and serve as resolvers, and variables and variable resolvers. bankruptcy eleven introduces you to Java's help for SOAP-based and RESTful net prone. as well as supplying you with the fundamentals of those internet provider different types, bankruptcy eleven provides a few complicated themes, akin to operating with the SAAJ API to speak with a SOAP-based internet carrier with no need to depend upon JAX-WS. you'll enjoy having discovered approximately XML in bankruptcy 10 sooner than diving into this bankruptcy. bankruptcy 12 is helping you place to exploit the various wisdom you have got accrued in past chapters by way of exhibiting you ways to exploit Java to jot down an Android app's resource code. This bankruptcy introduces you to Android, discusses its structure, exhibits you the way to put in important instruments, and develops an easy app. Appendix A offers the ideas to the programming workouts that seem close to the tip of Chapters 1 via 12. Appendix B introduces you to Java's Scripting API in addition to Java 7's aid for dynamically typed languages. Appendix C introduces you to extra APIs and structure subject matters: Accessibility, ByteArrayOutputStream and ByteArrayInputStream, classloaders, Console, laptop, Drag and Drop, Dynamic format, Extension Mechanism and ServiceLoader, dossier Partition-Space, dossier Permissions, Formatter, picture I/O, Internationalization, Java local Interface, NetworkInterface and InterfaceAddress, New I/O (including NIO.2), PipedOutputStream and PipedInputStream, personal tastes, Scanner, protection, clever Card, Splash monitor, flow Tokenizer, StringTokenizer, SwingWorker, method Tray, Timer and TimerTask, instruments and the Compiler API, Translucent and formed Window, and XML electronic Signature. Appendix D provides a gallery of important purposes that display a number of features of Java. regrettably, there are limits to how a lot wisdom could be filled right into a print booklet. hence, Appendixes A, B, C, and D usually are not incorporated during this book's pages. as an alternative, those appendixes are freely dispensed as PDF documents. Appendixes A and B are bundled with the book's linked code dossier on the Apress web site (http://www.apress.com). Appendixes C and D are bundled with their respective code records on my TutorTutor.ca web site at http://tutortutor.ca/cgi-bin/makepage.cgi?/books/bj7. Appendixes C and D are "living records" in that i will sometimes upload new fabric to them. for instance, I plan to extend Appendix C by means of additionally protecting Java Naming and listing Interface, Java Sound, distant strategy Invocation and Corba, robotic, Runtime and procedure, Swing Timer, and plenty of different APIs/architecture subject matters (including a whole travel of Swing components). in fact, it's going to take time to write down approximately those themes so do not anticipate them all to seem straight away -- they are going to slowly emerge in coming months (although smaller subject matters reminiscent of robotic will emerge a lot faster). What you’ll examine the complete Java language, together with Java 7-specific positive factors similar to activate string, try-with-resources, ultimate rethrow, multicatch, and SafeVarargs a massive collection of Java 7 APIs, starting with these APIs orientated towards the language itself, and together with Java 7-specific APIs equivalent to the Fork/Join Framework, items, JLayer, and NIO.2 a variety of Java 7 instruments, beginning with the javac compiler and java program launcher find out how to create person interfaces, operating with net prone, and a complete lot extra the fundamentals of having begun with Android app development Who this e-book is forThis publication goals the subsequent teams of builders: novices, expert (to some extent) in different programming languages yet without earlier publicity to Java Intermediate Java builders, expert within the basics of Java ahead of Java 7 and looking out to extend their knowing of Java 7 language/API adjustments All builders taking a look past normal Java, who are looking to leverage Java 7 to create cellular apps through Android Even complex Java builders may well discover a few goods of curiosity desk of Contents Getting began with Java researching sessions and items Exploring complex Language beneficial properties traveling Language and software APIs accumulating gadgets traveling extra application APIs growing and Enriching Graphical person Interfaces Interacting with Filesystems Interacting with Networks and Databases Parsing, developing, and remodeling XML files operating with net prone Java 7 Meets Android
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Starting Java 7 publications you thru this language and a big collection of platform APIs based on the next desk of contents: bankruptcy 1: Getting began with Java bankruptcy 2: researching periods and items bankruptcy three: Exploring complex Language beneficial properties bankruptcy four: traveling Language APIs bankruptcy five: amassing gadgets bankruptcy 6: traveling extra application APIs bankruptcy 7: growing and Enriching Graphical consumer Interfaces bankruptcy eight: Interacting with Filesystems bankruptcy nine: Interacting with Networks and Databases bankruptcy 10: Parsing, growing, and remodeling XML files bankruptcy eleven: operating with internet prone bankruptcy 12: Java 7 Meets Android Appendix A: recommendations to routines Appendix B: Scripting API and Dynamically Typed Language aid Appendix C: Odds and Ends Appendix D: functions Gallery bankruptcy 1 introduces you to Java and starts to hide the Java language by way of targeting primary recommendations comparable to reviews, identifiers, variables, expressions, and statements.
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Extra info for Beginning Java 7
No string is yet associated with firstName, and no arrays are yet associated with ages, gradeLetters, and matrix. Caution Square brackets can appear after the type name or after the variable name, but not in both places. For example, the compiler reports an error when it encounters int x;. It is common practice to place the square brackets after the type name (as in int ages;) instead of after the variable name (as in char gradeLetters;). You can declare multiple variables on one line by separating each variable from its predecessor with a comma, as demonstrated by the following example: int x, y, z; This example declares three variables named x, y, and z.
Consider the following examples: int counter; double temperature; String firstName; int ages; char gradeLetters; float matrix; The first example declares an integer variable named counter, the second example declares a double precision floating-point variable named temperature, the third example declares a string variable named firstName, the fourth example declares a one-dimensional integer array variable named ages, the fifth example declares a one-dimensional character array variable named gradeLetters, and the sixth example declares a two-dimensional floating-point array variable named matrix.
Acknowledgments Beginning Java 7 wouldn9t have been possible without the wonderful folks at Apress. I thank Steve Anglin for giving me the opportunity to write this book, Corbin Collins for guiding me through the various aspects of the book-writing process, Tom Welsh for helping me with the development of my chapters and appendixes, and Chad Darby for his diligence in catching various flaws. I couldn9t ask for better editors and a better technical reviewer. Thanks guys. Introduction Java 7 is Oracle9s latest release of the popular Java language and platform.