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XAML or JavaFx?

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This a quick, subjective, unauthorative and very non-scientific comparison of building applications with XAML and with JavaFx. The comparison is based on my personal experience working with each. On the XAML side this means WPF and Win8 store apps. On the JavaFx side this means a Windows 7 application.               JavaFx JavaFx is touted ...

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Migrating a Large Project from Ant to Maven

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The truth is we had been under difficult times. We spent almost three months to migrate our build mechanism from Ant to Maven. That’s the minimum time you have to put in your schedule if you are planning to do the same in a large project. There are still some collateral effects of this migration that we are struggling to ...

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A Selenium/WebDriver example in Java

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A couple of years back, I was pitching for some work and the client wanted to see how I would tackle a real world problem. They asked me to automate some tasks on the woot.com web site. The task was to go to various woot web sites and to read the product name and price of the offer of the ...

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Local variables inside a loop and performance

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Overview Sometimes a question comes up about how much work allocating a new local variable takes.  My feeling has always been that the code becomes optimised to the point where this cost is static i.e. done once, not each time the code is run. Recently Ishwor Gurung suggested considering moving some local variables outside a loop. I suspected it wouldn’t ...

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Agile Software Developer Terminology for New Programmers

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This is a post for new developers, young, inexperienced or old and retraining into information technology. Recently, I had a discussion with many engineers at one of those many London user group nights about how there is so much new stuff that we have to explain to people new to programming. One person had to coach a graduate developer on ...

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Using Apache Commons Functor functional interfaces with Java 8 lambdas

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Apache Commons Functor (hereon [functor]) is an Apache Commons component that provides a functional programming API and several patterns implemented (visitor, generator, aggregator, etc). Java 8 has several nice new features, including lambda expressions and functional interfaces. In Java 8, lambdas or lambdas expressions are closures that can be evaluated and behave like anonymous methods.           ...

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Ensuring the order of execution for tasks

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Sometimes it is necessary to impose certain order on the tasks in a threadpool. Issue 206 of the JavaSpecialists newsletter presents one such case: we have multiple connections from which we read using NIO. We need to ensure that events from a given connection are executed in-order but events between different connections can be freely mixed.         ...

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Can synchronization be optimised away?

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Overview There is a common misconception that because the JIT is smart and synchronization can be eliminated for an object which is only local to a method that there is no performance impact.             A test comparing StringBuffer and StringBuilder These two classes do basically the same thing except one is synchronized (StringBuffer) and the ...

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