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Determining Presence of Characters or Integers in String with Guava CharMatcher and Apache Commons Lang StringUtils

A recent Reddit post asked the question, “Is there a predefined method for checking if a variable value contains a particular character or integer?” That question-based ...
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Getting started with Apache Mesos and Apache Aurora using Vagrant

Apache Mesos is a cluster manager that provides efficient resource isolation and sharing across distributed applications, or frameworks. Think of it as the “kernel” for your data ...
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Project Student: Webservice Server with Jersey

This is part of Project Student. Other posts are Webservice Client With Jersey, Business Layer and Persistence with Spring Data. The second layer of the RESTful webapp onion is the ...
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Introduction To JUnit Theories

Have you ever read a mathematical theory? It typically reads something like this: For all a, b > 0  the following is true: a+b > a and a+b > b Just typically the statements ...
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Top 10 JavaCodeGeeks posts for 2013

2013 is coming to an end. What a year! Loyal to our tradition, we are compiling the top Java Code Geeks for the year that just passed. As with the Top 10 JavaCodeGeeks posts for 2010, ...
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What an Agile Project needs for success

In my previous posts I explained about the Attitude of a Great Software Developer and Attitude of a Great Software Tester.  I am a huge fan of Agile methodologies.  I believe, if ...
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Node.js Buffer Operations

Pure javascript is not efficient in handling binary data. Node.js has native layer implementation for handling binary data, which is buffer implementation with syntaxs of javascript. ...
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(Part 2 of 3): Synopsis of articles & videos on Performance tuning, JVM, GC in Java, Mechanical Sympathy, et al

This is a continuation of the previous post titled (Part 1 of 3): Synopsis of articles & videos on Performance tuning, JVM, GC in Java, Mechanical Sympathy, et al. Without any ...
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Adding Social Sign In to a Spring MVC Web Application: Unit Testing

Spring Social 1.0 has a spring-social-test module which provides support for testing Connect implementations and API bindings. This module was removed from Spring Social 1.1.0, and ...
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ArrayList vs LinkedList

I must confess the title of this post is a little bit catchy. I have recently read this blog post and this is a good summary of  discussions & debates about this subject. But this ...
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