150 Java Interview Questions & Answers - Java Code Geeks - 2024
The Dark Side Of Lambda Expressions in Java 8
This post may not make me any new friends. Oh well, I was never really popular at school anyway. But let’s get to the point. Java 8’s biggest feature in terms of the language is undoubtedly Lambda expressions. It’s been a flagship feature for functional languages such as Scala and Clojure for a few years, and now Java has finally joined in. The second biggest feature (depending of course on who yo
Java 8 Features - The ULTIMATE Guide - Java Code Geeks - 2024
EDITORIAL NOTE: In this post, we feature a comprehensive Java 8 Features Tutorial. It’s been a while since Java 8 is out in the public and everything points to the fact that this is a really major release. We have provided an abundance of tutorials here at Java Code Geeks, like Playing with Java 8 – Lambdas and Concurrency, Java 8 Date Time API Tutorial : LocalDateTime and Abstract Class Versus I
Log4j 2: Performance close to insane
Recently a respected member of the Apache community tried Log4j 2 and wrote on Twitter: @TheASF #log4j2 rocks big times! Performance is close to insane ^^ http://t.co/04K6F4Xkaa — Mark Struberg (@struberg) May 7, 2013 (Quote from Mark Struberg: @TheASF #log4j2 rocks big times! Performance is close to insane ^^ http://logging.apache.org/log4j/2.x/ ) It happened shortly after Remko Popma contributed
Threading stories: ThreadLocal in web applications - Java Code Geeks
This week I spend reasonable time to eliminate all our ThreadLocal variables in our web applications. The reason was that they created classloader leaks and we coudn’t undeploy our applications properly anymore. Classloader leaks happen when a GC root keeps referencing an application object after the application was undeployed. If an application object is still referenced after undeploy, then the
Maven Integration Testing And Spring Restful Services - Java Code Geeks
My original blog showed how to seperate maven unit and integration tests using a very simple example. http://johndobie.blogspot.com/2011/06/seperating-maven-unit-integration-tests.html Since then a lot of people asked me for a more realistic example than the one used originally. This post shows how you split your unit and integration tests using the original method in a realistic environment where
From Spring to Java EE 6 - Java Code Geeks
Bernard LignyNovember 27th, 2011Last Updated: October 22nd, 2012 I recently worked on a quite complex project mixing many Java EE 6 technologies (such as JPA, JAXB, JMS, JTA, JAX-RS, etc…). For productivity and planning reasons, the prototyped application was designed as a standalone pure Spring application. When the development of the real application started, we re-challenged our initial choice
GPGPU Java Programming - Java Code Geeks
Spyros SakellariouSeptember 28th, 2011Last Updated: October 26th, 2012 In one of our previous posts we discussed the General Processing on the Graphics Processing Unit (GPGPU) concepts and architecture. For C/C++ programmers this is all great but for Java Programmers writing C/C++ instead of Java is to say the least an inconvenience. So what tools are out there for Java programmers? Before we dive
Java Best Practices – High performance Serialization - Java Code Geeks
Continuing our series of articles concerning proposed practices while working with the Java programming language, we are going to discuss and demonstrate how to utilize Object Serialization for high performance applications. All discussed topics are based on use cases derived from the development of mission critical, ultra high performance production systems for the telecommunication industry. Pri
DataNucleus 3.0 vs Hibernate 3.5 - Java Code Geeks
Byron KiourtzoglouFebruary 27th, 2011Last Updated: October 21st, 2012 DataNucleus Access Platform, as stated at the official product site, is the most standards-compliant Open Source Java persistence product in existence. It is fully compliant with the JDO1, JDO2, JDO2.1, JDO2.2, JDO3, JPA1 and JPA2 Java standards. It also complies with the OGC Simple Feature Specification for persistence of geosp
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
Creating Internal DSLs in Java, Java 8- Adopting Martin Fowler's approach
Spring MVC: Creation of a simple Controller with Java based config
Java 7 Feature Overview - Java Code Geeks
Aspect Oriented Programming with Spring AOP - Java Code Geeks
Java Best Practices – Queue battle and the Linked ConcurrentHashMap - Java Code Geeks
Java Memory Model - Quick overview and things to notice - Java Code Geeks
What is Dependency Inversion? Is it IoC? - Java Code Geeks
Java Best Practices – String performance and Exact String Matching - Java Code Geeks
GC with Automatic Resource Management in Java 7 - Java Code Geeks
What every Programmer should know about the memory system - Java Code Geeks
