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Java SE 8 new features tour: Functional programming with Lambda Expression

This article of the “Java SE 8 new features tour” series will deep dive into understanding Lambda expressions. I will show you a few different uses of Lambda Expressions. They all ...
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Getting an Infinite List of Primes in Java

A common problem is to determine the prime factorization of a number. The brute force approach is trial division (Wikipedia, Khan Academy) but that requires a lot of wasted effort if ...
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Parsing an Excel File into JavaBeans using jXLS

This post shows how you can use jXLS to parse an Excel file into a list of JavaBeans. Here is a generic utility method I wrote to do that:                 /** * ...
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Tracing SQL statements in JBoss AS 7 using a custom logging handler

Using an ORM to abstract from your specific database and to let it create and issue all the SQL statements you would have to write by hand yourself seems handy. This is what made ORM ...
java-interview-questions-answers

Spring Integration Java DSL sample – further simplification with Jms namespace factories

In an earlier blog entry I had touched on a fictitious rube goldberg flow for capitalizing a string through a complicated series of steps, the premise of the article was to introduce ...
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Adding @atomic operations to Java

Overview How might atomic operations work in Java, and is there a current alternative in OpenJDK/Hotspot it could translate to. Feedback In my previous article on Making operations ...
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How to use CopyOnWriteArraySet in Java with Example

CopyOnWriteArraySet is little brother of CopyOnWriteArrayList class. These are special purpose collection classes which was added on JDK 1.5, along with their most popular cousin ConcurrentHashMap. ...
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Type safe dependency injection using Java 8.0

So I sometimes really miss old school Dependency Injection. Back when Spring was still “lightweight” we happily configured all our beans in an application.xml file with ...
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Codename One & Java Code Geeks are giving away free JavaOne Tickets (worth $3,300)!

Would you like to go to JavaOne? Besides being a cool conference its loads of fun with shows and events thru-out the city.   Now you have a chance, Codename One and Java Code Geeks ...
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How to use Salesforce REST API with your JavaServer Pages

Abstract: This tutorial gives an example of a JSP and how to integrate it with the Salesforce REST API. We will walk through the step­by­step process of creating an external client ...
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