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Android ListView: Custom Adapter with ImageView

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In previous post we talked about custom adapter. We used a quite simple adapter with just a TextView. We want to expand the idea described before and introduce an image for each planet. To do it we have to modify the layout and other code parts to handle the user click on each item. We want that each row in ...

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Android Fragment Lifecycle – multiple screen support

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Fragment lifecycle is an important aspect to take into account before using fragments. Every developer, that wants to develop an application in Android, has to face the mobile phone fragmentation problem or the multiple screen size support. In other words there are many smartphone on the market with different screen resolution and different screen density. To make the situation more ...

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5 Common User Story Mistakes

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User stories are a simple, yet effective way to communicate how a user or customer employs a product. But writing user stories that help a team build great software can be challenging. The following list summarises five common user story mistakes to help you improve your stories. Story Mania Some product owners and teams are so fond of user stories ...

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GC Memory Visualizer Tutorial – Part1

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As you may have read from past articles, one of the key Java programmer skills to acquire is your ability to understand and assess the health of the JVM such as the Java heap memory footprint along with the garbage collection process. In order to achieve the above goals, all JVM vendors (Oracle, IBM…) provide, via the verbose:gc parameter, a ...

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MOXy is the New Default JSON-Binding Provider in GlassFish 4

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GlassFish 4 is now available offering the complete Java EE 7 (JSR-342) platform.  EclipseLink made some major contributions to this release.  The first is providing the JPA 2.1 (JSR-338) implementation.  The second which I’ll cover in this post is EclipseLink MOXy is now the default JSON-binding provider for JAX-RS applications. RESTful Service  CustomerService Normally a real service will be backed ...

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Java testing with Selenium and dynamic ids in html

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One of the cool aspects of Selenium, is that not only can you record yourself using a site, you can actually run this as a junit test. Firstly, I’ll install Selenium in Firefox (as this is the official version) and record a quick test.  It’s important to note that Selenium will give you a number of different ways to remember ...

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Taming the JMX on WebLogic Server

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Let assume couple things first: I assume you have heard of Java’s JMX features and familiar what it does (expose and manage your service remotely). You ought to know that default JVM will have a Platform MBeanServer instance that you can register MBean. And you may view them using the jconsole command from the JDK. As of today, I think ...

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Parsing ESPN API using Java and Google GSON

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For my first post, I’ll explain how to parse the ESPN API.  The API documentation can be found at http://developer.espn.com/docs. Firstly, you’ll need to request an API key, then you can start querying the REST API to retrieve the JSON response.  In the following example, I’m going to query simply for all the players in the sport of “Soccer” (dam ...

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