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By Dejan Bosanac
Groovy and past: Leverage the Full energy of Scripting at the JavaTM Platform!
Using the JavaTM platform’s new scripting aid, you could increase potency, streamline your improvement approaches, and clear up difficulties starting from prototyping to net software programming. In Scripting in Java, Dejan Bosanac covers key points of scripting with Java, from the fascinating new Groovy scripting language to Java’s new Scripting and internet Scripting APIs.
Bosanac starts via reviewing the function and price of scripting languages, after which systematically introduces today’s most sensible scripting options for the Java platform. He introduces Java scripting frameworks, identifies confirmed styles for integrating scripting into Java functions, and provides useful suggestions for every thing from unit checking out to venture builds. He helps key ideas with vast code examples that reveal scripting at paintings in real-world Java tasks. insurance includes
· Why scripting languages supply astounding price to Java programmers
· Scripting languages that run contained in the JVM: BeanShell, JavaScript, and Python
· Groovy intensive: deploy, configuration, Java-like syntax, Java integration, defense, and more
· Groovy extensions: having access to databases, operating with XML, and construction easy net functions and Swing-based UIs
· Bean Scripting Framework: implementation, uncomplicated abstractions, and utilization examples
· conventional and new styles for Java-based scripting
· JSR 223 Scripting API: language bindings, discovery mechanisms, threading, pluggable namespaces, and extra
· JSR 223 internet Scripting Framework: scripting the iteration of web pages inside servlet containers
About the net Site
All code examples can be found for obtain at this book’s better half website.
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starting Android four is an replace to starting Android three, initially written via Mark Murphy. it's your first step at the route to developing marketable apps for the burgeoning Android marketplace, Amazon's Android Appstore, and extra. Google’s Android operating-system has taken the via hurricane, going from its humble beginnings as a telephone working method to its present prestige as a platform for apps that run throughout a gamut of units from telephones to drugs to netbooks to televisions, and the checklist is certain to develop.
shrewdpermanent builders aren't sitting idly via within the stands, yet are leaping into the sport of constructing cutting edge and salable purposes for this fast-growing, cellular- and consumer-device platform. If you’re no longer within the video game but, now's your probability!
starting Android four is clean with info at the newest generation of the Android platform. start before everything via fitting the instruments and compiling a skeleton app. go through growing layouts, applying widgets, taking person enter, and giving again effects. quickly you’ll be developing cutting edge purposes regarding multi-touch, multi-tasking, location-based function units utilizing GPS.
You’ll be drawing info reside from the net utilizing net prone and delighting your shoppers with life-enhancing apps. no longer because the notebook period first begun has there been this a lot chance for the typical developer. What are you anticipating? seize your replica of starting Android four and start!
<h3>What you’ll learn</h3> * increase Java-based cellular functions and video games for a variety of telephones and units.
* Create consumer interfaces utilizing WebKit and the Android widget framework.
* construct place- and map-based functions drawing on reside feeds over the net.
* comprise actions, prone, content material companies, and broadcast receivers into your functions.
* help a number of Android types, a number of display sizes, and different device-specific features.
* construct and adventure the array of latest WebM video and different multimedia APIs for Android and extra.
Who this ebook is for
starting Android four is aimed toward programmers new to Android program improvement who wish to create marketable purposes for the burgeoning industry of telephone, pill, and different Android equipment clients.
desk of Contents * the massive photo
* how you can start
* Your First Android undertaking
* analyzing Your First undertaking
* a piece approximately Eclipse
* bettering Your First undertaking
* Rewriting Your First undertaking
* utilizing XML-Based Layouts
* applying uncomplicated Widgets
* operating with boxes
* The enter approach Framework
* utilizing choice Widgets
* Getting Fancy with Lists
* nonetheless extra Widgets and bins
* Embedding the WebKit Browser
* utilizing Menus
* displaying Pop-up Messages
* dealing with job Lifecycle occasions
* dealing with Rotation
* facing Threads
* growing cause Filters
* Launching actions and Sub-Activities
* operating with assets
* Defining and utilizing kinds
* dealing with a number of reveal Sizes
* Introducing the Honeycomb UI
* utilizing the motion Bar
* Fragments
* dealing with Platform alterations
* gaining access to documents
* utilizing personal tastes
* handling and gaining access to neighborhood Databases
* Leveraging Java Libraries
* speaking through the web
* prone: the idea
* uncomplicated provider styles
* Alerting clients through Notifications
* inquiring for and Requiring Permissions
* having access to Location-Based prone
* Mapping with MapView and MapActivity
* dealing with cellphone Calls
* Fonts
* extra improvement instruments
* The position of different Environments
* HTML5
* PhoneGap
* different replacement Environments
* facing units
* the place can we move from right here?
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Extra resources for Scripting in Java: Languages, Frameworks, and Patterns
Sample text
The scanner groups individual characters into valid language constructs (such as variables, reserved words, and so on), called tokens. 2. The tokens are passed to the parser, which checks that the correct language syntax is being used in the program. In this step, the program is converted to its parse tree representation. 3. Semantic analysis performs type checking. Type checking validates that all variables, functions, and so on, in CHAPTER 1 the source program have been used consistently with their definitions.
I mention this technology throughout the book, where applicable. Source Code in Production As some people have pointed out, you should use a scripting language to write user-readable and modifiable programs that perform simple operations and control the execution of other programs. In this scenario, source code should be available in the production system at runtime, so programs are delivered not in object code, but in plain text files (scripts) in their original source. From our previous discussion of interpreters, it is obvious this holds true for purely interpreted languages.
Semantic analysis performs type checking. Type checking validates that all variables, functions, and so on, in CHAPTER 1 the source program have been used consistently with their definitions. The result of this phase is intermediate representation (IR) code. 4. Next, the optimizer (optionally) tries to make equivalent but improved IR code. 5. In the final step, the code generator creates target machine code from the optimized IR code. The generated machine code is written as an object file. 1 Compiler architecture To create one executable file, a linking phase is necessary.