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Akka Toolkit 2.3 released

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The release of 2.3.0 version of Akka toolkit was recently announced. Akka is a very useful toolkit and runtime for building highly concurrent, distributed, and fault tolerant event-driven applications on the JVM. It is distributed and provides high-level abstractions like Actors, Futures and STM. Its new release comes eight months after the 2.2.0 release and brings along new features. One ...

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Android App tutorial:Peg board game

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I released in Github the source code of an app that can be used to play peg board. This app was published on the market some times ago and this is a new version. The app screenshots are shown below:                   There are some interesting aspects we can consider in this app ...

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Joy of Coding… and mutation testing in Java

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For many years now it has been good practice to write unit tests for your source-code. And also to use test coverage reporting to see how much of your code is covered by tests. Although line + branch coverage reporting is quite useful, it doesn’t tell you how good your unit tests actually are. Hence it’s even possibly to achieve 100% ...

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Estimation by stuffing things into boxes

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I’ve started using an approach for software project estimation that so far is proving to be fairly transparent, quick and reliable. I’ve observed that within a reasonable degree of variation, most teams seems to complete about one “user-relevant task” per developer per calendar week. There are so many theoretical holes in my argument that there’s no point trying to cover ...

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Design Your Agile Project, Part 1

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The more I see teams transition to agile, the more I am convinced that each team is unique. Each project is unique. Each organizational context is unique. Why would you take an off-the-shelf solution that does not fit your context? (I wrote Manage It! because I believe in a context-driven approach to project management in general.) One of the nice ...

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Tower Defense in JavaFX (4)

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Ok, so far we’ve created a TileMap, displayed it on screen and made it editable in the first part. In the second part we implemented calculation of the attack path using the A* algorithm and made the enemies follow that path. In part three we created some custom TileSetAnimations so we can rotate the Insectoids around their center by an ...

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Java EE 8 : What does the community want?

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Following the earlier two community surveys, the first announced in December 2013 and the second in January 2014, Oracle calls the enterprise community for a third and final survey on Java EE 8.  The closing date for the survey will be March 24, 2014 at 12 AM Pacific Time. It is worth noting that while the first two surveys revealed the ...

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