понеділок, 10 листопада 2014 р.

10 Things You Didn’t Know About Java

10 Things You Didn’t Know About Java

So, you’ve been working with Java since the very beginning? Remember the days when it was called “Oak”, when OO was still a hot topic, when C++ folks thought that Java had no chance, when Applets were still a thing?
I bet that you didn’t know at least half of the following things. Let’s start this week with some great surprises about the inner workings of Java.

1. There is no such thing as a checked exception

That’s right! The JVM doesn’t know any such thing, only the Java language does.
Today, everyone agrees that checked exceptions were a mistake. As Bruce Eckel said on his closing keynote at GeeCON, Prague, no other language after Java has engaged in using checked exceptions, and even Java 8 does no longer embrace them in the new Streams API (which can actually be a bit of a pain, when your lambdas use IO or JDBC).

пʼятниця, 7 листопада 2014 р.

Java Concurrent Animated

Цікава програмка, яка графічно описує як працює Concurrency в Java:

четвер, 6 листопада 2014 р.

вівторок, 28 жовтня 2014 р.

XP Morning@Lohika: Continuous Delivery

Dear friends!
We are more than happy to announce future Morning@Lohika – XP Morning@Lohika: Continuous Delivery that will be held on 15th of November!
We are continuing good practice of inviting top-notch Ukrainian speakers, so this time please welcome Mikalai Alimenkou!
Mikalai Alimenkou – our welcomed guest from Kyiv, Java Tech Lead and Scrum Master. Expert in Java development, scalable architecture, Agile engineering practices and project management. Having more than 9 years of development experience, specializes on complex distributed scalable systems. Active participant and speaker of many international conferences. Founder and coach in training center XP Injection. Organizer and founder of Selenium CampJEEConfXP Days Ukraine and IT Brunch conferences. Founder of active “Anonymous developers club” (uadevclub).
mikalai alimenkou
Our XP Morning@Lohika will consist of 2 parts:

понеділок, 27 жовтня 2014 р.

Мрієш стати Hadoop інженером? Мрії збуваються!

Мрієш стати Hadoop інженером? Мріє збуваються!
Унікальна пропозиція від львівського Epam

BigData is a new, fast-emerging trend in enterprise world. Just in 2014 we've started tens of POC/R&D projects for our enterprise clients willing to explore Big Data capabilities for their business. Since majority of them have proven to be successful, thus we do expect significant demand in Big Data enabled engineers in the beginning of 2015. Acknowledging that there is shortage of experienced Big Data resources on market, we (Epam) are willing to hire and train mid level, senior/lead and architect level engineers in this field.

As part of the team, you'll get intensive 1 month training under guidance of our experts and assigned to real projects in test mode in order to start gaining production experience.


  • 2+ years of programming experience
  • Desire to learn and specialize in modern big data technologies.
  • Profound knowledge of Java or Scala 
  • Strong SQL knowledge
  • you know the difference between O(n) and O(n2)
  • At least Intermediate English level
  • able to use linux command line 
  • Knowledge/Experience of BigData (Hadoop, Cassandra, MongoDb, Couchbase, etc) is a big plus.

Якщо Ви зацікавилися, прохання надсилати резюме на адресу з темою Candidate for Hadoop/JUG

пʼятниця, 24 жовтня 2014 р.

Java навсегда! 12 причин длительного доминирования Java

Java foreverЛегко забыть значимость технологии, как только она пронесется кометой через коллективное сознание и погаснет огненной смертью за горизонтом. К примеру, Cobol — когда-то этот язык был культовым для целой эпохи, а сейчас его можно сравнить разве что с протухшей рыбой. В наши дни любой хипстер-программист вам отчеканит, что Cobol – это полный отстой, старый и бесполезный язык. Java может стать следующей жертвой «актуальных» суждений.

Пик продаж книг по Java – далеко в прошлом. Матерые Java-утилиты уже не достаточно сексуальны для обложек журналов. Java уже 19 лет, а прогрессивные разработчики увлечены такими моднейшими и актуальнейшими технологиями как Node.js, Objective-C, Dart, Go и т.д., удивляясь: «Java? Этот артефакт эпохи Web 1.0 еще жив?»

Беглый поиск на показывает, что работы на Java — навалом. Если для iOS около — 2500 предложений, для Java — более 17000. Конечно, нельзя всецело полагаться на эти цифры. Но тот факт, что на рынок работы на Java потенциально в семь раз больше, чем для моднейшей iOS, говорит о том, «старина Java» чувствует себя довольно таки неплохо.

субота, 18 жовтня 2014 р.

GeeCON Prague

GeeCON Prague is just around the corner!

JUG Lviv is happy to give away one free entry ticket!
If you are willing to attend to GeeCON - please drop an e-mail at

Also, if  the free ticket is taken - you can still get 10% discount, by using the following promo code: GC_PRG_UG10  

Few words from the organizers:
GeeCON is an international event addressed at Java/JVM languages programmers from all over the world.
Our speakers are world-famous computer science/IT experts, programmers and architects as well as leaders of local communities.

While this event will be the first one in Prague, we’ve already ran 6 editions of GeeCON in Kraków and Poznań in Poland. Prague edition will last two days and will have 3 tracks.

For more info, please visit the website: