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Scala
Spark: Parse CSV file and group by column value
I’ve found myself working with large CSV files quite frequently and realising that my existing toolset didn’t let me explore…
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Core Java
Java Reflection Tutorial – The ULTIMATE Guide (PDF Download)
EDITORIAL NOTE: In this post, we feature a comprehensive Java Reflection Tutorial. Reflection is a feature in the Java programming…
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Enterprise Java
How To Setup BPM and Rules Tooling For JBoss Developer Studio 8
The release of the latest JBoss Developer Studio (JBDS) brings with it the questions around how to get started with…
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Enterprise Java
How to compress responses in Java REST API with GZip and Jersey
There may be cases when your REST api provides responses that are very long, and we all know how important transfer…
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Core Java
It’s All About Tests – Part 1
This post is the first of a series of three. Mindset of testing Techniques Tools and Tips The Mindset Testing…
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Enterprise Java
Apache Lucene 5.0.0 is coming!
At long last, after a strong series of 4.x feature releases, most recently 4.10.2, we are finally working towards another…
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Meta JCG
Java Code Geeks sponsor Philadelphia Java Users’ Group November 2014 Meeting
Here at Java Code Geeks, we love interacting with fellow geeks and we always strive to provide as much value…
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Core Java
Unit Testing exercise with FizzBuzz and JUnitParams
I sometimes use FizzBuzz to demonstrate the basics of unit testing to newbies. Although FizzBuzz is really simple problem, it…
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Software Development
Don’t Miss out on Awesome SQL Power with FIRST_VALUE(), LAST_VALUE(), LEAD(), and LAG()
If you’re using a commercial database or PostgreSQL / Firebird / CUBRID, you will be able to take advantage of…
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