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Conserve water with the Internet of Things, Part 3
This third tutorial in a three-part series shows how to build a low-cost plant-monitoring solution based on Raspberry Pi. In this final installment, you'll build an HTML5 application that provides a visualization of the sensor data for desktop and mobile devices. You'll create an open data API to make the data available from the Cloudant data store.
16 Dec 2014
Conserve water with the Internet of Things, Part 1
This first tutorial in a three-part series shows how to build a low-cost houseplant-monitoring solution based on Raspberry Pi. The solution uses IBM Bluemix for collecting and visualizing sensor data and posting updates on your social network.
16 Dec 2014
Conserve water with the Internet of Things, Part 2
This second tutorial in a three-part series shows how to build a low-cost plant-monitoring solution based on Raspberry Pi. Secure the Node-RED app and set up automated deployment to Bluemix in response to code changes.
16 Dec 2014
Mastering MEAN: MEAN meets Meetup.com and microdata
In the fourth Mastering MEAN installment, integrate your MEAN application with Meetup.com's RESTful API. Along the way, make your web page more search-engine friendly by mixing in a bit of microdata to mark up your HTML semantically.
28 Oct 2014
Build a cloud-ready temperature sensor with the Arduino Uno and the IBM IoT Foundation, Part 1: Build the circuit and set up the environment
This tutorial (the first in a four-part series) introduces you to the Arduino microcontroller, discusses how the author has used it to solve a home-control issue, introduces some hardware add-ons to the Arduino and shows how to connect them up, and then shows how to load programs to test the hardware.
Also available in: Japanese   Portuguese  
16 Sep 2014
Mastering MEAN: MEAN and UGLI CRUD with responsive web design
Series author Scott Davis introduces the User Group List and Integration (UGLI) application: software to help manage user groups. Explore the basic create, retrieve, update, and delete (CRUD) functionality of the MEAN stack, and get introduced to the responsive web design capabilities of the Bootstrap framework.
Also available in: Chinese   Japanese  
16 Sep 2014
Build a cloud-ready temperature sensor with the Arduino Uno and the IBM IoT Foundation, Part 4: Deploy a query GUI
This is the final part of a four-part tutorial on building a temperature sensor with the Arduino Uno and the IBM Internet of Things (IoT) Foundation. In this part, you complete the end-to-end example by deploying a simple web page GUI for charting temperature and humidity data in nginx on IBM Bluemix, and see how to change the configuration of Node-RED to enable CORS.
Also available in: Japanese   Portuguese  
16 Sep 2014
Build a cloud-ready temperature sensor with the Arduino Uno and the IBM IoT Foundation, Part 3: Build a custom application with Node-RED
This is the third part of a four-part tutorial on building a temperature sensor with the Arduino Uno and the IBM Internet of Things (IoT) Foundation. In this part, you register an organization and your device for the IBM IoT Foundation. You then use Node-RED to build a simple application that takes temperature and humidity data coming in via MQTT from the Arduino circuit and sketch built in Part 2 and stores it in a Mongo database. You also build a Node-RED flow to implement a web service that queries the database.
Also available in: Japanese   Portuguese  
16 Sep 2014
Build a cloud-ready temperature sensor with the Arduino Uno and the IBM IoT Foundation, Part 2: Write the sketch and connect to the IBM IoT Foundation Quickstart
This tutorial (the second part of a four-part series) introduces MQTT (formerly Message Queueing Telemetry Transport), the protocol for the Internet of Things (IoT), and shows how you can implement MQTT on the Arduino. Learn about tools and techniques for testing and debugging problems with MQTT locally, and write an Arduino sketch that connects to the IBM Internet of Things Foundation Quickstart for graphing custom data.
Also available in: Japanese   Portuguese  
16 Sep 2014
Mastering MEAN: Tour a MEAN application
In the first Mastering MEAN installment, you used a Yeoman generator to bootstrap a MEAN application. Now take a walking tour of the application, tracing the first incoming HTTP request from the server side (Node.js and Express) through to the client side (AngularJS).
Also available in: Chinese   Japanese  
11 Sep 2014
Mastering MEAN: Introducing the MEAN stack
Build a modern web application with MongoDB, Express, AngularJS, and Node.js in this six-part series by web development expert Scott Davis. This first installment includes a demo, sample code, and full instructions for creating a basic MEAN application. You'll also learn about Yeoman generators that you can use to bootstrap a new MEAN application quickly and easily.
Also available in: Chinese   Japanese  
09 Sep 2014
JVM concurrency: Asynchronous event handling in Scala
Scala Future and Promise classes give you powerful ways to handle asynchronous processing, including nonblocking ways to organize and sequence events. The async / await constructs, implemented as a macro, make it even easier to write nonblocking event handling in Scala. This tutorial shows you the basic Future and Promise techniques in action, then demonstrates how async / await can convert what looks like simple blocking code to nonblocking execution.
Also available in: Chinese   Japanese  
02 Sep 2014
Learning PHP, Part 2: Upload files and use XML or JSON to store and display file information
This tutorial is Part 2 of a three-part "Learning PHP" series teaching you how to use PHP through building a simple workflow application. Take this tutorial if you have a basic understanding of PHP and want to learn about uploading files from the browser, sessions, or using PHP to process XML or JSON.
Also available in: Japanese   Vietnamese   Portuguese  
03 Jan 2013
Learning PHP, Part 3: Authentication, objects, exceptions, and streaming
This tutorial is Part 3 of a three-part "Learning PHP" series teaching you how to use PHP through building a simple workflow application. In this tutorial, you will learn about using HTTP authentication, streaming files, and how to create objects and exceptions.
Also available in: Russian   Japanese   Vietnamese   Portuguese  
03 Jan 2013
Build an Eclipse development environment for Perl, Python, and PHP
Eclipse presents a wealth of capabilities for building tools for compiled languages like C and the Java programming language, but provides little support for scripting languages like Perl, Python, and PHP. For these and similar languages, the Eclipse Dynamic Languages Toolkit (DLTK) comes to the rescue. Walk through the process of building a DLTK-based IDE and discover sample code for each step.
27 Oct 2011
Managing pureQuery-enabled applications efficiently, Part 3: Automate client optimization with WebSphere applications
In a customer environment, applications often interact with transactional databases from within an application server. pureQuery client optimization can provide useful diagnostic information as well as increase performance for your web application. In this tutorial, you will learn how to automate the pureQuery client optimization process with Apache Ant script technologies.
19 May 2011
Improve web application security with jQuery Mobile
Many web developers consider security a low priority. Security is frequently relegated to the end of the software development life cycle, as little more than an afterthought. Sometimes, software security is neglected entirely, resulting in applications rife with common vulnerabilities. Because such bugs might manifest only under conditions present during an attack, they can be hard to detect prior to such events without knowledge of how the exploitation process works. Using a web application built with jQuery Mobile, PHP, and MySQL, this tutorial shows how many types of vulnerabilities occur along with common methods of exploitation and, most importantly, their respective countermeasures.
Also available in: Chinese   Japanese   Portuguese   Spanish  
03 May 2011
jQuery Mobile and JSON
jQuery powers many of the sites on the Internet today, providing dynamic user experience in the browser and helping to make traditional desktop applications increasingly rare. Now that browsers found on the major mobile platforms have caught up to desktop browser functionality, the jQuery team has introduced jQuery Mobile, or JQM. The mission of JQM is to bring a universal experience to all major mobile browsers, enabling rich content across the Internet, regardless of the viewing device. This tutorial examines fundamental design concepts around jQuery Mobile in the context of a sales force automation-oriented application. You create an intuitive and visually appealing mobile web application that interacts with an Internet-hosted website to store and manage sales opportunities.
Also available in: Chinese   Spanish  
01 Mar 2011
Developing Drupal publications to support standards-based XML
Academic and corporate clients seeking digital journals or other types of web publications regularly require platforms that support standards-based XML. This tutorial explains how to customize a Drupal implementation to develop publications that enable editors, authors, and users to submit and edit content in standards-based XML, where the standard can be enforced using server-side validation settings. For illustrative purposes, the discussion references TEI XML, the markup standard in widespread use in academia.
Also available in: Portuguese  
08 Feb 2011
Understanding the Zend Framework, Part 5: Creating PDF files
In previous parts of this "Understanding the Zend Framework" series, you created the basic application, the Chomp online feed reader, using the open source PHP Zend Framework. In this tutorial, you use the Zend Framework's PDF capabilities to generate a PDF document based on entries the user has saved.
Also available in: Portuguese  
18 Jan 2011
Build a web-based notification tool with XMPP
Real-time web applications are networked applications, with web-based user interfaces, that display Internet information as soon as it's published. Examples include social news aggregators and monitoring tools that continually update themselves with data from an external source. In this tutorial, you will create Pingstream, a small notification tool that uses PHP and JavaScript to communicate over the Extensible Messaging and Presence Protocol (XMPP), a set of XML technologies designed to support presence and real-time-communications functionality.
Also available in: Chinese  
22 Jun 2010
Manipulate CSV data with Python and pureXML
IBM DB2 pureXML allows you to store XML data natively in a relational database management system, giving you the power and flexibility to report on this data without disturbing the advantages that its XML format offers. In this tutorial, you will learn how to connect to a DB2 database from the Python programming language, importing data about population from the United States Census Bureau. You will use Python to convert this CSV file into XML, before inserting this XML data natively into DB2. Finally, you will use Python to create a command-line application that produces some informative tables that you can access through a menu system.
Also available in: Chinese   Korean   Portuguese  
22 Dec 2009
Build a RESTful service on CICS with PHP
CICS Transaction Server (TS) is a powerful transaction manager designed for rapid, high-volume processing. SupportPac CA1S uses technology from IBM WebSphere sMash to enhance CICS TS with PHP scripting capabilities and Representational state transfer (REST)-related features. This tutorial shows how you can use PHP to quickly and easily work with CICS programs and expose them on the Web. If you are a PHP developer, find out how you can use your skills to interact with enterprise assets in CICS; if you are a CICS developer, see how PHP provides a simple and agile way to manipulate your existing resources.
Also available in: Chinese  
21 Apr 2009
Deploying an Eclipse-based application with Java Web Start
Learn how to build a small, bare-bones application built on the Eclipse Framework and deploy it through Java Web Start (JWS) -- a technology you can use to deploy Java applications easily over standard Internet sites, enabling easy upgrades and distribution.
Also available in: Portuguese  
03 Feb 2009
Create stand-alone web services applications with Eclipse and Java SE 6, Part 1: The web service server application
Use the Eclipse Integrated Development Environment (IDE) and Java Platform, Standard Edition (Java SE) 6 to create a stand-alone web services application that can be run from the console. In this tutorial, the first in a series, start by getting familiar with the Eclipse IDE. Configure the environment; create projects, packages, and classes; then run the application from the command line.
Also available in: Vietnamese  
13 Nov 2008
Create BlackBerry applications with open source tools, Part 1: Laying the groundwork
There is perhaps no bigger market-transformational technology than the cell phone. And within that classification of devices, perhaps none more recognizable than the BlackBerry from Research In Motion (RIM). Most people think it is just for business e-mail, but there is untapped potential in that addictive device. Despite being a popular platform, third-party applications are still needed for the BlackBerry platform. There is no better way to bring those applications to fruition than to enable the help from the open source community. Follow along as this tutorial lays the groundwork for an open source data-collection application, upon which an accessible and easy-to-use data-collection service is built.
Also available in: Portuguese   Spanish  
19 Aug 2008
LPI exam 301 prep, Topic 306: Capacity planning
In this tutorial, Sean Walberg helps you prepare to take the Linux Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this last in a series of six tutorials, Sean walks you through monitoring your system resources, troubleshooting resource problems, and analyzing system capacity.
15 Apr 2008
LPI exam 301 prep, Topic 305: Integration and migration
In this tutorial, Sean Walberg helps you prepare to take the Linux Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this fifth in a series of six tutorials, Sean walks you through integrating LDAP with your system's logins and applications. He also details the procedure to integrate your server into a foreign Microsoft Active Directory.
08 Apr 2008
LPI exam 301 prep, Topic 304: Usage
In this tutorial, Sean Walberg helps you prepare to take the Linux Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this fourth in a series of six tutorials, Sean walks you through searching your LDAP tree and using the command-line tools. You'll also learn how to set up Microsoft Outlook to query your LDAP tree.
25 Mar 2008
LPI exam 301 prep, Topic 303: Configuration
In this tutorial, Sean Walberg helps you prepare to take the Linux Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this third in a series of six tutorials, Sean walks you through configuring a Lightweight Directory Access Protocol (LDAP) server, including access control, security, and performance. By the end of this tutorial, you'll know about LDAP server configuration.
04 Mar 2008
LPI exam 301 prep, Topic 302: Installation and development
In this tutorial, Sean Walberg helps you prepare to take the Linux Professional Institute Senior Level Linux Professional (LPIC-3) exam. In this second in a series of six tutorials, Sean walks you through installing and configuring a Lightweight Directory Access Protocol (LDAP) server, and writing some Perl scripts to access the data. By the end of this tutorial, you'll know about LDAP server installation, configuration, and programming.
04 Dec 2007
Emacs editing environment, Part 5: Shape your Emacs view
This tutorial, the fifth in a series, shows you how to manage and manipulate the shape of your Emacs session -- examine how to partition the Emacs screen, create multiple X client windows for a single Emacs session, and display multiple buffers in each window, dividing the screen with horizontal and vertical divisions. You also learn about mouse window control and characteristics so that by the time you're through, you'll know how to make your Emacs session look and work the way you want it to.
07 Aug 2007
LPI exam 102 prep, Topic 111: Administrative tasks
In this tutorial, Ian Shields continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this sixth in a series of nine tutorials, Ian introduces you to administrative tasks. By the end of this tutorial, you will know how to manage users and groups, set user profiles and environments, use log files, schedule jobs, back up your data, and maintain the system time.
10 Jul 2007
LPI exam 102 prep, Topic 109: Shells, scripting, programming, and compiling
In this tutorial, Ian Shields continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this fifth in a series of nine tutorials, Ian introduces you to the Bash shell, and scripts and programming in the Bash shell. By the end of this tutorial, you will know how to customize your shell environment, use shell programming structures to create functions and scripts, set and unset environment variables, and use the various login scripts.
Also available in: Chinese   Spanish  
30 Jan 2007
Introduction to Apache Maven 2
Modern software projects are no longer solely monolithic creations of single local project teams. With the increased availability of robust, enterprise-grade open source components, today's software projects require dynamic collaboration among project teams and often depend on a mix of globally created and maintained components. Now in its second generation, the Apache Maven build system -- unlike legacy build tools created before the Internet-enabled era of global software development -- was designed from the ground up to take on these modern challenges. This tutorial gets you started with Maven 2.
19 Dec 2006
LPI exam 102 prep, Topic 108: Linux documentation
In this tutorial, Ian Shields continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this fourth in a series of nine tutorials, Ian introduces you to Linux documentation. By the end of this tutorial, you will know how to use and manage local documentation, find documentation on the Internet, and use automated logon messages to notify users of system events.
20 Sep 2006
LPI exam 101 prep: The X Window System
In this tutorial, Ian Shields continues preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 101. In this fifth in a series of five tutorials, Ian introduces you to the X Window System on Linux. By the end of this tutorial, you will know how to install and maintain the X Window System. This tutorial covers both major packages for X on Linux: XFree86 and X.Org.
Also available in: Vietnamese  
02 Jul 2006
Developing your first Eclipse RCP application
The objective of the Eclipse Rich Client Platform (RCP) is to enable Eclipse to be used in a wide range of end-user applications that are not integrated development environments (IDEs). With the release of Eclipse V3.1, it is easy to create RCP applications. This tutorial will guide you step by step in building your very own RCP application.
Also available in: Portuguese  
27 Jun 2006
LPI exam 102 prep: Kernel
In this tutorial, Ian Shields begins preparing you to take the Linux Professional Institute Junior Level Administration (LPIC-1) Exam 102. In this first in a series of nine tutorials, Ian introduces you to the kernel on Linux. By the end of this tutorial, you will know how to build, install, and query a Linux kernel and its kernel modules.
21 Mar 2006
Eclipse Test & Performance Tools Platform, Part 1: Test, profile, and monitor applications
Learn how to use the Eclipse Test & Performance Tools Platform (TPTP) to profile a Java application, and discover how to quantify memory usage, identify memory leaks, and isolate performance bottlenecks.
14 Feb 2006
Eclipse Test & Performance Tools Platform, Part 1: Test, profile, and monitor applications
Learn how to use the Eclipse Test & Performance Tools Platform (TPTP) to profile a Java application, and discover how to quantify memory usage, identify memory leaks, and isolate performance bottlenecks.
Also available in: Portuguese  
14 Feb 2006
How to use regular expressions in PHP
Regular expressions can provide a powerful way to work with text. Using regular expressions, you can do complex validation of user input, parse user input and file contents, and reformat strings. PHP provides simple methods that let you use POSIX and PCRE regular expressions. This article discusses the differences between POSIX and PCRE, and how you can use regular expressions and PHP V5.
10 Jan 2006
Introduction to Apache Derby
Get the basic skills you need to use Apache Derby in Java 2 Platform, Enterprise Edition (J2EE) environments where Derby is embedded as a database, such as in Apache Geronimo. This tutorial demonstrates how to embed Derby within Geronimo and how to use Derby and Geronimo to deploy a Web-based e-commerce application. It also helps you become familiar with Derby's system tools, a set of utilities that make application development with Derby easy and straightforward.
20 Dec 2005
Learning PHP, Part 2: Upload files and use XML to store and display file information
This tutorial is Part 2 of a three-part "Learning PHP" series that takes you from the most basic PHP script to working with databases and streaming from the file system by documenting the building of a document workflow system. Here, documents are uploaded by users and stored in a non-Web-accessible location for retrieval by the application in Part 3. We also look at working with XML files using DOM and SAX, and we look at exceptions.
21 Jun 2005
Backing up your Linux machines
Cover your back in the worst-case scenario with the techniques in this tutorial. Even new, high-quality hard drives will occasionally fail. Regular system backups are essential, especially for busy developers who make continual improvements to their code. This tutorial shows you how to protect yourself from losing huge amounts of critical data.
08 Aug 2001

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