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A community for Java developers and fans of the now ubiquitous mobile platform. We’ll explore available development tools, best practices, as well as mobile and enterprise deployment.

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Latest from Dice

Coding Challenge Wrap-Up: Who Won the Map

Roman Trade Network
Compared to our previous coding challenges, May’s was a modest affair, with just three entries coming in from Rick Matter, Jon Pattinson and Jay Nagel. And, despite opening the entries to include Delphi, Go and Python as well as C/C++, Java and C#, all three were written in Java! (You can find all the competition files here.) In this challenge, you were given a 20×20 map that contained 20 trading islands, each occupying a square. Each island was a trading… continue…

How to Write a Game Runner Program

Cards
I wrote the runsevens game runner program to automate the running of the Tournament of Sevens programming challenge, and it was an interesting little project. It’s designed to do the following: Maintain a ladder of players. Run games of Sevens for a number of players by executing standalone exes. Update the ladder with games’ results. That’s a fairly high-level view. Running each game of Sevens also requires shuffling a deck of cards, dealing them to the players and tracking card… continue…

Is Apache Spark the Next Big Thing in Big Data?

Data Transfer
In any article or blog post, any mention of Big Data usually includes something about Hadoop. When it comes to Big Data, Apache Hadoop has been the big elephant in the room, and the release of Hadoop 2.0 in 2013 made the environment easier and more stable. But even with the inclusion of Impala for querying stored information real-time, Hadoop is still a batch-based system that processes data in, well, batch mode. Big Data processing is said to have three… continue…

Tournament of Sevens: Week 1 Results

Marathon
Though the Tournament of Sevens coding challenge took much longer to get off the ground than expected, I’ve taken steps to sort out the bot bugginess and the contest is now roaring ahead. The first week included 16 viable competitors, out of 19 entries. One obstacle in getting this going was from Eclipse projects. The problem with them is that their source files end up in different places and the IDE is a bit fiddly building and deploying the class… continue…

Interview Questions for Java Developers

Posted In Java, Looking in Tech
Dice Interview Qs Icon
With an estimated 9 million developers using it, Java is one of the most popular programming languages around. In fact, some estimate that Java powers more than 3 billion devices. With so many people claiming expertise, IT managers often ask tricky technical questions to separate the novices from senior developers, says David Bolton, guide of the Dice Java Talent Community. Here are some questions you can expect to hear. What is Type Erasure? What Most People Say: “Umm, I’m not… continue…

Slashdot: News for Nerds

KDE's UI To Bend Toward Simplicity

posted 6 hours | from sfcrazy

design 119

sfcrazy (1542989) writes "KDE Software is often criticized for being too complicated for an average user to use. Try setting up Kmail and you would know what I mean. The KDE developers are aware of it and now they are working on making KDE UI simpler. KDE usability team lead Thomas Pfeiffer Thomas prefers a layered feature exposure so that users can enjoy certain advanced features at a later stage after they get accustomed to the basic functionality of the application. He quotes the earlier (pre-Plasma era) vision of KDE 4 – "Anything that makes Linux interesting for technical users (shells, compilation, drivers, minute user settings) will be available; not as the default way of doing things, but at the user's discretion."

Ask Slashdot: How To Avoid Becoming a Complacent Software Developer?

posted 23 hours | from anonymous coward

!dice 247

An anonymous reader writes: Next year will be the start of my 10th year as a software developer. For the last nice years I've worked for a variety of companies, large and small, on projects of varying sizes. During my career, I have noticed that many of the older software developers are burnt out. They would rather do their 9-5, get paid, and go home. They have little, if any, passion left, and I constantly wonder how they became this way. This contradicts my way of thinking; I consider myself to have some level of passion for what I do, and I enjoy going home knowing I made some kind of difference.

Needless to say, I think I am starting to see the effects of complacency. In my current job, I have a development manager who is difficult to deal with on a technical level. He possesses little technical knowledge of basic JavaEE concepts, nor has kept up on any programming in the last 10 years. There is a push from the upper echelon of the business to develop a new, more scalable system, but they don't realize that my manager is the bottleneck. Our team is constantly trying to get him to agree on software industry standards/best practices, but he doesn't get it and often times won't budge. I'm starting to feel the effects of becoming complacent. What is your advice?

A Beginner's Guide To Programming With Swift

posted 2 days | from nerval's lobster

apple 68

Nerval's Lobster (2598977) writes Earlier this year, Apple executives unveiled Swift, which is meant to eventually replace Objective-C as the programming language of choice for Macs and iOS devices. Now that iOS 8's out, a lot of developers who build apps for Apple's platforms will likely give Swift a more intensive look. While Apple boasts that Swift makes programming easy, it'll take some time to learn how the language works. A new walkthrough by developer David Bolton shows how to build a very simple app in Swift, complete with project files (hosted on SourceForge) so you can follow along. A key takeaway: while some Swift features do make programming easier, there's definitely a learning curve here.

Oracle CEO Larry Ellison Steps Down

posted 2 days | from mrspoonsi

business 139

mrspoonsi writes Oracle founder Larry Ellison is stepping down as CEO. He will be replaced by two executives. Former Oracle presidents Safra Catz and Mark Hurd will be co-CEOs. Ellison will be the Executive Chairman of Oracle's Board, and the company's CTO. Oracle's shares are off by 3% on the news. "Larry has made it very clear that he wants to keep working full time and focus his energy on product engineering, technology development and strategy," said the Oracle Board's Presiding Director, Dr. Michael Boskin.

An Open Source Pitfall? Mozilla Labs Closed, Quietly

posted 2 days | from mikejuk

software 111

mikejuk writes with this excerpt: When Google Labs closed there was an outcry. How could an organization just pull the rug from under so many projects? At least Google announced what it was doing. Mozilla, it seems since there is no official record, just quietly tiptoes away — leaving the lights on since the Mozilla Labs Website is still accessible. It is accessible but when you start to explore the website you notice it is moribund with the last blog post being December 2013 with the penultimate one being September 2013. The fact that it is gone is confirmed by recent blog posts and by the redeployment of the people who used to run it. The projects that survived have been moved to their own websites. It isn't clear what has happened to the Hatchery -the incubator that invited new ideas from all and sundry. One of the big advantages of open source is the ease with which a project can be started. One of the big disadvantages of open source is the ease with which projects can be allowed to die — often without any clear cut time of death. It seems Mozilla applies this to groups and initiatives as much as projects. This isn't good. The same is true at companies that aren't open source centric, though, too, isn't it?

Torvalds: No Opinion On Systemd

posted 3 days | from anonymous coward

developers 372

An anonymous reader writes:Linux creator Linus Torvalds is well-known for his strong opinions on many technical things. But when it comes to systemd, the init system that has caused a fair degree of angst in the Linux world, Torvalds is neutral. "When it comes to systemd, you may expect me to have lots of colorful opinions, and I just don't," Torvalds says. "I don't personally mind systemd, and in fact my main desktop and laptop both run it." Torvalds added, "I think many of the 'original ideals' of UNIX are these days more of a mindset issue than necessarily reflecting reality of the situation. There's still value in understanding the traditional UNIX "do one thing and do it well" model where many workflows can be done as a pipeline of simple tools each adding their own value, but let's face it, it's not how complex systems really work, and it's not how major applications have been working or been designed for a long time. It's a useful simplification, and it's still true at some level, but I think it's also clear that it doesn't really describe most of reality."

Ask Slashdot: Have You Experienced Fear Driven Development?

posted 3 days | from nerdyalien

developers 231

nerdyalien writes: A few years back, I worked for a large-scale web development project in southeast Asia. Despite formally adopting Agile/Scrum, development was driven based on fear imposed by managers. Scott Hanselman defines Fear-Driven-Development as having three parts. 1) Organizational fear has "worried about making mistakes, breaking the build, or causing bugs that the organization increases focus on making paper, creating excessive process, and effectively standing in the way of writing code." 2) There's also fear of changing code, which comes from a complex, poorly-understood, or unmaintainable codebase. 3) The most common one is fear of losing your job, which can lead to developers checking in barely-functioning code and managers committing to a death march rather than admit failure. My project ran four times its initial estimation, and included horrendous 18-hour/day, 6 day/week crunches with pizza dinners. Is FDD here to stay?

College Students: Want To Earn More? Take a COBOL Class

posted 4 days | from jfruh

stats 268

jfruh writes: With a lot of debate over the value of a college education, here's a data point students can use: at one Texas college, students who took an elective COBOL class earned on average $10,000 more a year upon graduation than classmates who hadn't. COBOL, dropped from many curricula years ago as an outdated language, is tenaciously holding on in the industry, as many universities are belatedly starting to realize.

Digia Spins Off Qt As Subsidiary

posted 4 days | from deviceguru

linux 33

DeviceGuru writes: Following through on an announcement from August, Digia has spun off a subsidiary called The Qt Company to unify Qt's commercial and open source efforts, and debuted a low-cost plan for mobile developers. The Linux-oriented Qt cross-platform development framework has had a tumultuous career, having been passed around Scandinavia over the years from Trolltech to Nokia and then from Nokia to Digia. Yet, Qt keeps rolling along in both commercial and open source community versions, continually adding support for new platforms and technologies, and gaining extensive support from mobile developers. Now Qt is its own company, or at least a wholly owned subsidiary under Digia. Finland-based Digia has largely been involved with the commercial versions of Qt since it acquired the platform from Nokia in 2012, but it has also sponsored the community Qt Project as a relatively separate project. Now, both efforts are being unified under one roof at The Qt Company and the new QT.io website, says Digia. Meanwhile, Digia will focus on its larger enterprise software business.