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Published: Fri, 22 Sep 2017 05:07:48 -0700

Last Build Date: Fri, 22 Sep 2017 05:07:48 -0700

 



8 technologies transforming the database

Thu, 21 Sep 2017 09:58:00 -0700

What is a database? Once upon a time, it was simple. The database was a modern Bob Cratchit putting data in tables made up of very straight columns filled with one row per entry. Long, endless rectangles of information stretching on into the future.

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(Insider Story)


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53% off Cable Organizer Electronics Accessories Travel Bag - Deal Alert

Thu, 21 Sep 2017 06:57:00 -0700

Do you have a ball of tangled up wires and adapters somewhere in the bottom of your bag? This Universal Electronics Accessories Travel Organizer provides a flexible organization solution for your electronics and computer accessories. It helps make you better organized with all the small items and gadgets.  Made of durable and weather-resistant nylon with well padded semi-flexible covers.  It's compact size of  8.8“ x W 6.1"allows it to easily stored in you laptop bag or backpack.  This travel organizers typical list price of $18.99 has been reduced 53% to just $9. See this deal on Amazon.

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62% off RAVPower 14000mAh Portable Car Jump Starter - Deal Alert

Thu, 21 Sep 2017 06:53:00 -0700

A compact power bank, a car jump starter, and a LED flashlight, all fit into a minimal and portable design. Whether it is your car or your USB devices, never run out of power again. Store it in the glovebox or simply drop it in your bag. Have a concentrated 14000mAh source of power always with you -- enough for up to 20 vehicle jumpstarts or many device recharges before the unit itself needs to be recharged. RAVPower's jump starter typically lists for $160 but is currently discounted 62% on Amazon to just $64. See the discounted car jumper now on Amazon

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48% off Sycees Plug-in LED Night Light with Dusk to Dawn Sensor, 6-Pack - Deal Alert

Mon, 18 Sep 2017 06:29:00 -0700

These night lights turn themselves on & off from dusk to dawn, have offset prongs that won't block your second outlet, and feature long lasting LED bulbs that won't make any noticeable impact on your energy bill at only 2.2 Kwh per year. Their frosted white diffuser ring puts out just the right amount of soft light for you to find way in the dark without having to turn on any overhead lights. A pack of 6 is currently discounted 48% down to just $12.59. See this deal on Amazon.

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Machine learning for Java developers

Fri, 15 Sep 2017 12:07:00 -0700

Self-driving cars, face detection software, and voice controlled speakers all are built on machine learning technologies and frameworks--and these are just the first wave. Over the next decade, a new generation of products will transform our world, initiating new approaches to software development and the applications and products that we create and use.

As a Java developer, you want to get ahead of this curve now--when tech companies are beginning to seriously invest in machine learning. What you learn today, you can build on over the next five years, but you have to start somewhere.

This article will get you started. You will begin with a first impression of how machine learning works, followed by a short guide to implementing and training a machine learning algorithm. After studying the internals of the learning algorithm and features that you can use to train, score, and select the best-fitting prediction function, you'll get an overview of using a JVM framework, Weka, to build machine learning solutions. This article focuses on supervised machine learning, which is the most common approach to developing intelligent applications.

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What is Kotlin? The Java alternative explained

Fri, 15 Sep 2017 03:00:00 -0700

Kotlin is a general purpose, open source, statically typed “pragmatic” programming language for the JVM and Android that combines object-oriented and functional programming features. It is focused on interoperability, safety, clarity, and tooling support. Versions of Kotlin for JavaScript (ECMAScript 5.1) and native code (using LLVM) are in the works.

Kotlin originated at JetBrains, the company behind IntelliJ IDEA, in 2010, and has been open source since 2012. The Kotlin team currently has more than 20 full-time members from JetBrains, and the Kotlin project on GitHub has about 100 contributors. JetBrains uses Kotlin in many of its products including its flagship IntelliJ IDEA.

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74% off Vansky Bias Lighting for HDTV USB LED Multi Color Strip Accent Lighting - Deal Alert

Thu, 14 Sep 2017 06:39:00 -0700

This bias lighting strip, currently discounted by 74% on Amazon from $49.99 down to just $12.99, reduces eye-strain caused by differences in picture brightness from scene to scene in movies, shows and games, by adding a subtle backlight to your monitor or TV.  The LED lights can be changed with up to 20 color selections customizing and setting the mood of your workspace. The strip is easy to install and can be cut to size and plugs directly in the USB port of the TV or monitor.  Just Plug-and-play!

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61% off Etekcity Wireless Bluetooth 4.0 Receiver - Deal Alert

Thu, 14 Sep 2017 06:36:00 -0700

Stream audio from your Bluetooth device to any non-Bluetooth enabled receiver, speaker, or car stereo with this adapter from Etekcity, which is currently discounted 61% down to just $19.58. Simply connect the receiver to your speaker system via a traditional RCA or 3.5mm aux audio input, and pair with your Bluetooth device. Its compact design makes it super portable, and its long lasting battery provides up to 10 hours of streaming before needing a re-charge. See this deal on Amazon.

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Amazon Discounts Fire 7 by $15, Fire HD 8 by $25 For Prime Members - Deal Alert

Wed, 13 Sep 2017 06:15:00 -0700

Amazon's best-selling tablets feature vibrant displays, generous battery life, Alexa, parental controls, and everything you need to surf, check email, watch Netflix, read books, and more. If you're a Prime member, you can get get the Fire 7 for as low as $34.99 after a $15 discount, or the Fire HD 8 for as low as $54.99 after a $25 discount. If you're looking for a tablet that won't drain your bank account these are solid considerations especially at these discounted prices. 

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NoSQL standouts: The best key-value databases

Wed, 13 Sep 2017 03:00:00 -0700

Most any application needs some form of persistence—a way to store the data outside of the application for safekeeping. The most basic way is to write data to the file system, but that can quickly become a slow and unwieldy way to solve the problem. A full-blown database provides a powerful way to index and retrieve data, but may also be overkill. Sometimes all you need is a quick way to take a freeform piece of information, associate it with a label, stash it somewhere, and pull it back out again in a jiffy.

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(Insider Story)


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Unwanted by Oracle, Java EE gets adopted by Eclipse

Wed, 13 Sep 2017 03:00:00 -0700

The Eclipse Foundation is set to become the new steward of enterprise Java, taking over from Oracle, which no longer wants to manage Java EE.

As part of the adoption, Java EE will likely get a new name, something Oracle recommended in its proposal to have a foundation adopt Java EE.

A month ago, Oracle said it would end its stewardship role of Java EE and turn it over to an open source foundation. Following consultations with Java partners such as IBM and Red Hat and after meeting with several foundations, Oracle has settled on an organization that has had a long history in Java development: the Eclipse Foundation. Eclipse created its popular Eclipse IDE and managed multiple other Java technologies.

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61% off this 3-foot Anker Powerline+ USB C to USB 3.0 Cable - Deal Alert

Tue, 12 Sep 2017 06:32:00 -0700


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What’s new in JUnit 5 for Java testing

Tue, 12 Sep 2017 03:00:00 -0700

The JUnit testing framework for Java has just moved to version 5. Unlike previous releases, JUnit 5 features modules from several subprojects, including:

  • Platform, for launching testing frameworks on the JVM and defining the TestEngine API via a command line.
  • Jupiter, for programming and extension models for writing tests and extensions and then (via plugins) building them within JUnit, Gradle, or Maven.
  • Vintage, for running JUnit 3 and 4 tests on the JUnit 5 platform.

In Jupiter, a developer can use annotations as meta-annotations, in which you define an annotation that automatically inherits the semantics of meta-annotations—a new programming model in JUnit. Also, Jupiter lets test constructors and methods to have parameters, allowing for more flexibility and enabling dependency injection for constructors and methods.

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44% off Anker SoundBuds Bluetooth and Sweatproof Sport Headphones - Deal Alert

Mon, 11 Sep 2017 06:37:00 -0700

These Bluetooth headphones from Anker are lightweight, water resistant and provide up to 7 hours of listening on a single charge, making them a good consideration for workouts or outdoor activities. Customizable EarTips and InEar-Hooks give anyone a strong and comfortable fit. Anker promises a worry-free 18 month warranty, and right now if you buy the item on Amazon you'll get it for just $19.99, 44% off its typical list price, and an additional promotion also gets you discounts when you buy other Anker gadgets as well. See this deal on Amazon.

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Java 9 will not receive long-term support

Fri, 08 Sep 2017 13:44:00 -0700

Oracle’s revamped release plan for standard Java means the upcoming Java Development Kit 9 will not be designated for long-term support. Under this new regime, Java 9 is not the first long-term support release on which the first wave of twice-yearl "feature" releases is to be based on, but instead is the first “feature" release, with Java 8 as the base.

Under a plan put forth by Oracle on September 6, there will be feature releases of Java, driven by one or a few significant new features, every six months. Every three years, the feature release will be a long-term support release, with the next long-term support release, to be called Java 18.9, arriving in September 2018. (The version designation of 18.9 stipulates the year and month of the release’s arrival.)

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What is JSON? JavaScript Object Notation explained

Thu, 07 Sep 2017 03:00:00 -0700

JavaScript Object Notation is a schema-less, text-based representation of structured data that is based on key-value pairs and ordered lists. Although JSON is derived from JavaScript, it is supported either natively or through libraries in most major programming languages. JSON is commonly, but not exclusively, used to exchange information between web clients and web servers. 

Over the last 15 years, JSON has become ubiquitous on the web. Today it is the format of choice for almost every publicly available web service, and it is frequently used for private web services as well.

The popularity of JSON has also resulted in native JSON support by many databases. Relational databases like PostgreSQL and MySQL now ship with native support for storing and querying JSON data. NoSQL databases like MongoDB and Neo4j also support JSON, though MongoDB uses a slightly modified, binary version of JSON behind the scenes.

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Why Python and C# can’t displace Java, C, or C++

Thu, 07 Sep 2017 03:00:00 -0700

Although Java, C, and C++ have seen drops in language popularity, they once again remain atop the Tiobe language popularity index, which uses the number of developers, courses, and vendors for each language to calculate its popularity. Their two main contenders—Python and C#—face obstacles that may keep them in the second tier.

Python actually slipped 1.32 points from its rating a year ago, while C# slipped 0.71 points in the same period.

Python and C# have long been poised to become the next big programming languages, but that hasn’t happened so far because of their limitations, notes the Tiobe report’s authors: “C# is not a Top 3 language because its adoption in the non-Windows world is still low. Python on the other hand is dynamically typed, which is a blocker for most large and/or critical software systems to use it.”

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The road to Java 9: Twice-yearly releases are coming

Wed, 06 Sep 2017 08:00:00 -0700

Oracle will speed up the releases of standard Java, with a new release Java Development Kit (JDK) coming every six months and a long-term support version that gets updated every three years. As a result, the next version of Java will be released in March 2018, six months after this month’s planned Java 9 release.

Until now, Oracle has delivered major releases of Java every two years or so, anchored by a major feature or two. But that anchor-feature-driven approach has caused delays in the upcoming JDK 9, which is finally due to arrive on September 21 after being stalled by development of its complex modularity feature.

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52% off 299-Piece All-Purpose First Aid Kit - Deal Alert

Wed, 06 Sep 2017 07:13:00 -0700

This full-fledged, easy-to-tote first aid softpack is designed to save time and frustration in the midst of an emergency. It's compact and portable, but contains 299 physician-recommended supplies.  Among the items neatly organized inside the zippered kit is a first aid guide, vinyl gloves, bandages, cold compress, gauze pads, trauma pad, cotton-tipped applicators, first aid tape roll, antiseptics and all three common OTC pain medications. The kit is currently a #1 best seller on Amazon, averages 4.5 out of 5 stars from over 280 customers, and its typical list price of $26.74 has been reduced 52% to just $12.80. Click over to Amazon to see this deal.

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Save A Whopping $100 on Amazon Echo Right Now By Going Refurbished - Deal Alert

Wed, 06 Sep 2017 06:31:00 -0700

You can pick up Amazon Echo for VERY far below list price, if you're comfortable buying refurbished. Which you can be -- certified refurbished products are tested and certified to look and work like new, and come with warranties. Echo typically lists for $180, or $165 refurbished, but right now it looks like Amazon's letting them go for just $80. Amazon Echo is a hands-free speaker you control with your voice. Echo connects to the Alexa Voice Service to play music, provide information, news, sports scores, weather, and more—instantly. All you have to do is ask. Echo has seven microphones and beam forming technology so it can hear you from across the room—even while music is playing. Echo is also an expertly tuned speaker that can fill any room with 360° immersive sound. When you want to use Echo, just say the wake word “Alexa” and Echo responds instantly. If you have more than one Echo or Echo Dot, Alexa responds intelligently from the Echo you're closest to with ESP (Echo Spatial Perception). See the certified refurbished Amazon Echo on Amazon.

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What is big data? Everything you need to know

Wed, 06 Sep 2017 03:00:00 -0700

Every day human beings eat, sleep, work, play, and produce data—lots and lots of data. According to IBM, the human race generates 2.5 quintillion (25 billion billion) bytes of data every day. That’s the equivalent of a stack of DVDs reaching to the moon and back, and encompasses everything from the texts we send and photos we upload to industrial sensor metrics and machine-to-machine communications.

That’s a big reason why “big data” has become such a common catch phrase. Simply put, when people talk about big data, they mean the ability to take large portions of this data, analyze it, and turn it into something useful.

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Web services in Java SE, Part 3: Creating RESTful Web services

Sat, 02 Sep 2017 10:46:00 -0700

Part 2 of this four-part series on Java SE Web services showed how to use the JAX-WS API to develop SOAP-based Web services. JAX-WS also supports RESTful-based Web services, which this article shows how to develop. It first defines and then builds and runs a library Web service, and next defines, builds, and runs a simple client that accesses this service.

Defining a library web service

The library Web service, which I've named Library, manages a library of books with their authors. It consists of a main Library class along with supporting Book and Author classes.

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What to expect in Java 9’s JDK: More than modularity

Fri, 01 Sep 2017 03:00:00 -0700

After multiple delays, Java 9, the first major upgrade to the standard edition of Java since March 2014, is due to arrive on September 21, in the form of Java Development Kit 9. The official proposal for JDK 9 lists roughly 90 new features; modularity is the major one, reconfiguring Java into a modular format in an effort that has gone on for years. But there are other improvements in areas such as compilation, code cache and JavaScript accommodations.

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The case for Oracle to cede control of Java SE

Fri, 01 Sep 2017 03:00:00 -0700

Now that Oracle wants to turn over leadership of enterprise Java’s (Java EE’s) development to a still-unnamed open source foundation, might the same thing happen with the standard edition of Java (Java SE) that Oracle also controls? Such a move could produce substantial benefits. But it does not seem unlikely, at least at the moment.

Oracle said it has no plans to make such a move. But the potential fruits of a such a move are undeniable.

If Oracle steps aside, there’s more room for many others

For one, a loosening of Oracle’s control could entice other contributors to Java to participate more. Java development has had other participants, including IBM, Red Hat, and SAP. But with the current Oracle-dominated setup, other companies and individuals could be reluctant to contribute a lot if they see it as benefiting a major software industry provider—and possible rival—like Oracle.

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Jenkins Blue Ocean UI to provide code quality insights

Thu, 31 Aug 2017 13:24:00 -0700

Blue Ocean, the new user interface for the popular Jenkins continuous integration and continuous delivery (CI/CD) platform, will begin incorporating insights into code quality trends and static analyses, under an improvement plan detailed this week by the project’s creator.

The goal is to improve the developer’s visibility into the health of software projects, Blue Ocean creator James Dumay, director of project management at Jenkins technology vendor CloudBees, said. Plans also call for expanding the capabilities of Blue Ocean’s visual pipeline editor to better match what is available in Jenkins’ declarative pipelines for software delivery. The development team intends to outfit Blue Ocean with these capabilities in the next six to 12 months.

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35% off Etekcity Smart Plug 2 Pack, Energy Monitoring and Alexa Compatible - Deal Alert

Thu, 31 Aug 2017 06:46:00 -0700

With this smart plug from Etekcity, you can turn your appliances on/off remotely from your mobile device, or with your voice via Alexa. Or automate the on/off cycle with a schedule. The plug also monitors and helps control energy usage, and the slow drain that occurs even when devices are powered down. With this deal, a 2-pack of smart plugs is discounted 35% down to $38.74, or just under $20 per plug. See this deal now on Amazon.

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38% off Dishonored 2 for XBox One, PS4 and PC - Deal Alert

Wed, 30 Aug 2017 06:08:00 -0700

Play your way in a world where mysticism and industry collide. Will you choose to play as Empress Emily Kaldwin or the royal protector, Corvo Attano? Will you make your way through the game unseen, make full use of its brutal combat system, or use a blend of both? How will you combine your character's unique set of powers, weapons and gadgets to eliminate your enemies? The story responds to your choices, leading to intriguing outcomes, as you play through each of the game's hand-crafted missions. Right now Dishonored 2 is discounted 38% down to $24.99, for the XBOX One, PS4 and PC versions. See this deal on Amazon.

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40% off Lexar microSD To Lightning Reader - Deal Alert

Mon, 28 Aug 2017 06:56:00 -0700

Lexar's microSD-to-Lightning reader makes it easy to move all your favorite content to & from your iOS device on the go. So whether you’re offloading stunning action photos from that sporting event, or dramatic video from your drone, or if you just want a simple solution to back up or move around your files while mobile -- it’s got you covered. With its small footprint, you can put it in your pocket and go. And the Lightning connector fits with most iOS cases, providing simple plug-and-play functionality. An optional app from the app store allows you to back up files when connected to your device for greater peace of mind. Lexar's microSD to Lightning reader averages 4 out of 5 stars on Amazon, where its typical list price of $24.99 has been reduced a generous 40%, for now, to just $14.99. See this deal on Amazon.

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AmazonBasics 6-Foot HDMI Cable 2-Pack Discounted To $7.96 - Deal Alert

Mon, 28 Aug 2017 06:42:00 -0700

The AmazonBasics High-Speed HDMI Cable quickly connects a wide range of HDMI devices. Use it to connect a small mobile, home-entertainment, or gaming device to a big-screen HDTV, large projector, or computer monitor, for example. Delivering clear, vibrant video, the AmazonBasics High-Speed HDMI Cable with Ethernet meets the latest standards, which means it considerably expands bandwidth up to 18 Gbps, offers 4K@50/60 (2160p) video resolution (four times more clarity than 1080p/60), and supports the wide-angle theatrical 21:9 video aspect ratio. The cables average 4.5 out of 5 stars from over 12,000 reviewers on Amazon (read reviews). Right now you can get a 2-pack of these 6-foot cables for just $7.96. See this deal now on Amazon.

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What is SQL? The language of databases

Mon, 28 Aug 2017 03:00:00 -0700

Today, Structured Query Language is the standard means of manipulating and querying data in relational databases, though with proprietary extensions among the products. The ease and ubiquity of SQL have even led the creators of many “NoSQL” or non-relational data stores, such as Hadoop, to adopt subsets of SQL or come up with their own SQL-like query languages.

But SQL wasn’t always the “universal” language for relational databases. From the beginning (circa 1980), SQL had certain strikes against it. Many researchers and developers at the time, including me, thought that the overhead of SQL would keep it from ever being practical in a production database. 

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