Download E-books The Well-Grounded Java Developer: Vital techniques of Java 7 and polyglot programming PDF

By Benjamin J Evans


The Well-Grounded Java Developer deals a clean and sensible examine new Java 7 positive aspects, new JVM languages, and the array of aiding applied sciences you would like for the subsequent new release of Java-based software.

About the Book

The Well-Grounded Java Developer starts off with thorough insurance of Java 7 beneficial properties like try-with-resources and NIO.2. you are going to then discover a cross-section of rising JVM-based languages, together with Groovy, Scala, and Clojure. you will discover transparent examples which are sensible and that assist you dig into dozens of worthy improvement suggestions showcasing glossy ways to the dev approach, concurrency, functionality, and masses more.

Written for readers accustomed to Java. No event with Java 7 or new JVM languages required.

buy of the print ebook comes with a proposal of a unfastened PDF, ePub, and Kindle publication from Manning. additionally on hand is all code from the e-book.

What's Inside

  • New Java 7 features
  • Tutorials on Groovy, Scala, and Clojure
  • Discovering multicore processing and concurrency
  • Functional programming with new JVM languages
  • Modern methods to checking out, construct, and CI

Table of Contents

    PART 1 constructing WITH JAVA 7
  1. Introducing Java 7
  2. New I/O
  3. PART 2 important TECHNIQUES
  4. Dependency Injection
  5. Modern concurrency
  6. Class records and bytecode
  7. Understanding functionality tuning
  9. Alternative JVM languages
  10. Groovy: Java's dynamic friend
  11. Scala: robust and concise
  12. Clojure: more secure programming
  14. Test-driven development
  15. Build and non-stop integration
  16. Rapid net development
  17. Staying well-grounded

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Txt"); direction objective = Paths. get("D:\\Backup\\MyStuff. txt"); records. copy(source, target); often, you’ll are looking to specify concepts with the reproduction operation. the following instance makes use of an overwrite (replace current) choice. import static java. nio. dossier. StandardCopyOption. *; direction resource = Paths. get("C:\\My Documents\\Stuff. txt"); direction goal = Paths. get("D:\\Backup\\MyStuff. txt"); documents. copy(source, aim, REPLACE_EXISTING); different replica concepts contain COPY_ATTRIBUTES (copies over the dossier attributes) and ATOMIC_MOVE (ensures that each side of a flow operation be triumphant or the operation will get rolled back). The circulation operation is particularly just like the reproduction operation and is finished utilizing the atomic records. move(Path resource, direction goal) process. back, you usually wish replica recommendations to compliment that movement, so that you can use the records. move(Path resource, direction objective, CopyOptions... ) process (note using varargs). subsequently, we wish to maintain the attributes of the resource dossier after we flow it, in addition to overwrite the objective dossier (if it exists). import static java. nio. dossier. StandardCopyOption. *; course resource = Paths. get("C:\\My Documents\\Stuff. txt"); course goal = Paths. get("D:\\Backup\\MyStuff. txt"); documents. move(source, objective, REPLACE_EXISTING, COPY_ATTRIBUTES); Now for you to create, delete, reproduction, and flow documents, it’s time to take a more in-depth examine Java 7’s aid for dossier attributes. 36 2. four. three bankruptcy 2 New I/O dossier attributes dossier attributes regulate what might be performed to a dossier through whom. The vintage what permissions contain even if you are able to do a number of of analyzing from, writing to, or executing a dossier. The vintage whom permissions comprise proprietor, staff, and all. This part will commence via masking the crowd of easy dossier attributes, similar to while a dossier was once final accessed, no matter if it’s a listing or a symbolic hyperlink, etc. the second one a part of this part will conceal dossier characteristic help for particular filesystems, that is tough simply because various filesystems have their very own set of attributes and their very own interpretation of what these attributes suggest. Let’s commence with the elemental dossier characteristic help. uncomplicated dossier characteristic aid even if there aren’t many dossier attributes which are actually common, there's a team that almost all filesystems help. The BasicFileAttributes interface defines this universal set, yet you certainly use the records software classification to respond to numerous questions about a dossier, equivalent to the subsequent: ■ ■ ■ ■ What used to be the final transformed time? what's its dimension? Is it a symbolic hyperlink? Is it a listing? directory 2. four demonstrates the tools at the records classification for collecting those simple dossier attributes. The directory prints information regarding /usr/bin/zip and also you may still see output just like the next: /usr/bin/zip 2011-07-20T16:50:18Z 351872 fake fake {lastModifiedTime=2011-07-20T16:50:18Z, fileKey=(dev=e000002,ino=30871217), isDirectory=false, lastAccessTime=2011-06-13T23:31:11Z, isOther=false, isSymbolicLink=false, isRegularFile=true, creationTime=2011-07-20T16:50:18Z, size=351872} word that every one of the attributes are proven with the decision to documents.

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