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1000 Responses to Java Is Not Dying

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When 1000 comments are posted on an editorial, it’s worth considering what is being said. My editorial last week, ” If Java is Dying, It Sure Looks Awfully Healthy”  hit a nerve in various developer communities. Between Reddit, Hacker News, and Slashdot, it received more than 1,000 comments. Curiously, very few commenters disputed my central argument; namely, that the common ...

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JavaFX 2: How to Load Image

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This is JavaFX tutorial about how to load a image in your JavaFX 2 application. This can be done easily with ImageView. The ImageView is a Node used for painting images loaded with Image class. So as you can se we will first load image with Image class and then display it with ImageView. Also I will here demonstrate how ...

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Cloud IDE for J2EE development

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With so many of the traditional software tools going to the cloud I want to see how they compare to traditional tools. My interest is J2EE technology and started to look for a cloud service that allowed me to develop, test and deploy a J2EE application. As I soon found out many of the cloud IDEs are designed for web ...

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Too Many Parameters in Java Methods, Part 4: Overloading

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One of the problems with expecting too many parameters to be passed to a Java method is that it is more difficult for the client of that method to be determine that they are passing the appropriate values in the appropriate order. In previous posts, I have described how custom types, parameters objects, and builders can be used to address ...

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Boost your development speed

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I’m really pragmatic on this. To go faster, you need to avoid the things that slow you down. These blockers may vary from developer to developer, but some are pretty common. In this post i will elaborate on the more common ones. Before i do so i want to remind you that to improve, we might need to unlearn in ...

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Amazon Elastic Map Reduce to compute recommendations with Apache Mahout

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Apache Mahout is a “scalable machine learning library” which, among others, contains implementations of various single-node and distributed recommendation algorithms. In my last blog post I described how to implement an on-line recommender system processing data on a single node. What if the data is too large to fit into memory (>100M preference data points)? Then we have no choice, ...

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In Depth : Android Shutdown Sequence

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What happened when I long press power button ? What is shutdown sequence ? How is it different from desktop linux shutdown sequence? How to change shutdown menu ? Many questions pop-up in mind when we think about Android shutdown sequence. Before you read about shutdown sequence I suggest you to read about boot sequence article. Android is linux based ...

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Collaborative development: how did we get here?

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I have been doing software development for over 30 years and it has been fun to watch how the idea of collaboration has evolved. In the early 80s, in one of my first assignments as a developer I got my very own cubicle. It was in one of the far corners of a cube farm that worked really well as ...

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SQL Trick: row_number() is to SELECT what dense_rank() is to SELECT DISTINCT

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The SQL:2003 standard ranking functions are awesome companions and useful tools every now and then. The ones that are supported in almost all databases are: ROW_NUMBER(): This one generates a new row number for every row, regardless of duplicates within a partition. RANK(): This one generates a new row number for every distinct row, leaving gaps between groups of duplicates within ...

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