By Scott Oaks
Coding and trying out are usually thought of separate parts of craftsmanship. during this accomplished consultant, writer and Java specialist Scott Oaks takes the procedure that anybody who works with Java might be both adept at figuring out how code behaves within the JVM, in addition to the tunings prone to support its performance.
You'll achieve in-depth wisdom of Java program functionality, utilizing the Java digital laptop (JVM) and the Java platform, together with the language and API. builders and function engineers alike will research quite a few positive factors, instruments, and tactics for bettering the best way Java 7 and eight purposes perform.
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Over 60 basic yet highly powerful recipes for studying multithreaded program improvement with Java 7
* grasp all that Java 7 has to provide for concurrent programming
* familiarize yourself with thread administration, the Fork/Join framework, concurrency sessions and masses extra during this booklet and publication
* a pragmatic Cookbook full of recipes for reaching crucial Java Concurrency projects
Java continues to be the worldwide general for constructing quite a few functions and firm software program, and the release of Java 7 brings with it fascinating new services for concurrent programming in terms of the concurrency utilities enhancement. this enables builders to utilize their purposes with parallel activity functionality. "Java 7 Concurrency Cookbook" covers all parts of the Java concurrency API, offering crucial recipes for profiting from the interesting new capabilities.
On your computing device, you could hearken to tune once you edit a observe rfile and browse your emails, without notice! the reason for this is that your working procedure permits the concurrency of projects, very similar to the Java platform which bargains a number of periods to execute concurrent projects inside of a Java software. "Java 7 Concurrency Cookbook" covers crucial positive factors of the Java concurrency API, with certain emphasis at the new features of model 7.
With each one model, Java raises the on hand performance to facilitate improvement of concurrent courses. This ebook covers an important and worthwhile mechanisms integrated in model 7 of the Java concurrency API, so that you could be capable of use them without delay on your applications.
"Java 7 Concurrency Cookbook" contains recipes to show you how to in attaining every thing from the fundamental administration of threads and initiatives, to the hot Fork /Join framework, via synchronization mechanisms among projects, varieties of concurrent initiatives that Java can execute, info constructions that needs to be utilized in concurrent purposes and the periods of the library that may be customized.
With the step by step examples during this publication you’ll be ready to follow an important and priceless positive aspects of the Java 7 concurrency API.
What will you research from this e-book
* grasp the fundamentals of thread administration and synchronization ahead of diving into larger point concurrency projects
* familiarize yourself with interesting new concurrency good points of Java 7, together with the Phaser category and the Fork/Join Framework
* effectively delegate thread administration to executors
* customise essentially the most necessary sessions of the Java concurrency API with real-world examples
* discover ways to use high-level Java utilities to regulate synchronization among threads
* Get a sneak peek at utilizing Eclipse and NetBeans for debugging concurrency code
* stay away from issues of facts inconsistency through studying the information buildings you want to use in concurrent purposes
* make the most of an advantage appendix choked with guidance that each programmer may still think of whilst constructing a concurrent program
"Java 7 Concurrency Cookbook" is a realistic Cookbook jam-packed with real-world suggestions. Intermediate–advanced point Java builders will examine from task-based recipes to exploit Java’s concurrent API to software thread secure solutions.
Making Java Groovy is a pragmatic instruction manual for builders who are looking to mixture Groovy into their daily paintings with Java. It begins via introducing the major changes among Java and Groovy—and how one can use them for your virtue. Then, it publications you step by step via practical improvement demanding situations, from net purposes to net providers to computing device functions, and exhibits how Groovy makes them more uncomplicated to place into production.
About this Book
You don't desire the total strength of Java while you're writing a construct script, an easy process software, or a light-weight internet app—but that's the place Groovy shines brightest. This dependent JVM-based dynamic language extends and simplifies Java so that you can pay attention to the duty to hand rather than dealing with minute info and pointless complexity.
Making Java Groov is a pragmatic consultant for builders who are looking to take advantage of Groovy of their paintings with Java. It begins by means of introducing the major changes among Java and Groovy and the way to take advantage of them in your virtue. Then, you'll concentrate on the events you face on a daily basis, like eating and growing RESTful net prone, operating with databases, and utilizing the Spring framework. You'll additionally discover the nice Groovy instruments for construct approaches, checking out, and deployment and how one can write Groovy-based domain-specific languages that simplify Java development.
Written for builders accustomed to Java. No Groovy event required.
Purchase of the print e-book contains a unfastened e-book in PDF, Kindle, and ePub codecs from Manning Publications.
• more straightforward Java
• Closures, developers, and metaprogramming
• Gradle for builds, Spock for checking out
• Groovy frameworks like Grails and Griffon
About the Author
Ken Kousen is an self sufficient advisor and coach focusing on Spring, Hibernate, Groovy, and Grails.
Table of Contents
<ol><h5>PART 1: on top of things WITH GROOVY</h5> • Why upload Groovy to Java?
• Groovy by means of instance
• Code-level integration
• utilizing Groovy gains in Java
<h5>PART 2: GROOVY TOOLS</h5> • construct methods
• checking out Groovy and Java initiatives
<h5>PART three: GROOVY within the genuine WORLD</h5> • The Spring framework
• Database entry
• RESTful net providers
• construction and trying out net applications
A complete Java consultant, with samples, workouts, case reports, and step by step instructionBeginning Java Programming: the thing orientated procedure is a simple source for purchasing all started with one of many world's so much enduringly renowned programming languages. in accordance with sessions taught by way of the authors, the booklet starts off with the fundamentals and progressively builds into extra complex innovations.
Due to the tireless efforts of open-source builders, Cocoon has quick received visibility because the preeminent XML-based net publishing framework. regrettably, its documentation continues to be an important shortcoming. if you are new to Cocoon, gaining a feeling of precisely what you are able to do with it may be tricky, and truly getting began could be even tougher.
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Additional info for Java Performance: The Definitive Guide
Tests all along that continuum have some merit, and choosing the tests along that continuum is one place where experience and intuition will come into play. However, in the end there can be no substitute for testing a full application as it is deployed in production; only then can the full effect of all performance-related issues be understood. Similarly, understanding what is and is not an actual regression in code is not always a black-and-white issue. Programs always exhibit random behavior, and once random‐ ness is injected into the equation, we will never be 100% certain about what data means.
JPA, for example, will typically cache data it has read from the database (see Chap‐ ter 11); the second time that data is used, the operation will often be faster since the data can be obtained from the cache rather than requiring a trip to the database. Similarly, when an application reads a file, the operating system typically pages that file into mem‐ ory. , in a loop to measure performance) will run faster the second time, since the data already resides in the computer’s main memory and needn’t actually be read from disk.
The usual reason a test is statistically inconclusive is that there isn’t enough data in the samples. So far, the example here has looked at a series with three results in the baseline and the specimen. 5 seconds for the specimen? 19: the probability that the results are different has risen from 57% to 81%. Running additional tests and adding the three data points again increases the probability to 91%—past the usual level of statistical signifi‐ cance. Running additional tests until a level of statistical significance is achieved isn’t always practical.