Do you want to know how to develop your skillset to become a Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!

 

1. JPA Mini Book

2. JVM Troubleshooting Guide

3. JUnit Tutorial for Unit Testing

4. Java Annotations Tutorial

5. Java Interview Questions

 

and many more ....

 

 

Git Tutorial – The Ultimate Guide

git-logo

Git is, without any doubt, the most popular version control system. Ironically, there are other version control systems easier to learn and to use, but, despite that, Git is the favorite option for developers, which is quite clarifying about the powerfulness of Git. This guide will cover all the topics needed to know in order to use Git properly, from ...

Read More »

Top 20 Online Programming Courses to Boost your Career

software-development-2-logo

Do you want to know what is the best investment you can make with your time and money? Knowledge As a software developer you should be constantly acquiring new skills. This is the best way to advance your career and enjoy the rewards (monetary, emotional etc.). Towards that direction you should be reading books, devouring technical articles and staying informed ...

Read More »

Lazy evaluation

java-interview-questions-answers

Recently i was writing log4j appender and wanted to use logger in it to log some diagnostic details during custom appender creation, but log4j initialization completes only after appender instance are created, so message logged during this phase are ignored. I felt the need for lazy initialization in custom appender and started to look at options. In this blog i will ...

Read More »

Communicating Design

java-logo

Software design is crucial. It is the foundation of an application. Much like a blueprint, it provides a common platform for parties from all backgrounds. It facilitates understanding, collaboration, and development. Design should not be considered only an element of development. It should not live solely in developers’ minds, otherwise teams will find it near to impossible to grow, as ...

Read More »

Apache Spark Packages, from XML to JSON

apache-spark-logo

The Apache Spark community has put a lot of effort into extending Spark. Recently, we wanted to transform an XML dataset into something that was easier to query. We were mainly interested in doing data exploration on top of the billions of transactions that we get every day. XML is a well-known format, but sometimes it can be complicated to ...

Read More »

So, Oracle killed java.net

java-logo

Well, not yet…but they announced to shutdown java.net and kenai by May 2017. I have been interviewed about this for an ADTmag article The ‘Sunsetting’ of Kenai and java.net by John K. Waters. As Oracle provided little information to what will happen to critical projects that are already hosted on java.net, most of what was written in the article is ...

Read More »

The Java Syncrhonisers

java-logo

Threads communication happens primarily by sharing access to fields and objects. Although extremely efficient, this form of communication is prone to errors such as thread interference and memory consistency. Synchronization is a tool that helps to prevent such errors. However, synchronization does not come for free and can introduce latency when accessing a lock or object that is currently being ...

Read More »

A Beginner’s Guide to the Dockerfile

docker-logo

The humble but powerful Dockerfile is the building block of Docker images and containers. In essence, it’s a list of commands the Docker engine runs to assemble the image, and thus instances of images as containers. Let’s look at an example before learning to construct our own. This is the Dockerfile for RethinkDB, a popular open-source, real-time database. dockerfile FROM ...

Read More »

Building a compiler for your own language: from the parse tree to the Abstract Syntax Tree

software-development-2-logo

In this post we are going to see how process and transform the information obtained from the parser. The ANTLR parser recognizes the elements present in the source code and build a parse tree. From the parse tree we will obtain the Abstract Syntax Tree which we will use to perform validation and produce compiled code. Note that the terminology can vary: ...

Read More »

Reducing Your Docker Image Size

docker-logo

When architecting Docker applications, keeping your images as lightweight as possible has a lot of practical benefits. It makes things faster, more portable, and less prone to breaks. Lightweight images also make it easier to use services like Jet, Codeship’s Docker CI/CD platform; they’re less likely to present complex problems that are hard to troubleshoot, and it takes less time ...

Read More »

Achieving Order Guarnetee in Kafka with Partitioning

java-interview-questions-answers

One of the most important features of Kafka is to do load balancing of messages and guarantee ordering in a distributed cluster, which otherwise would not be possible in a traditional queue. Lets first try and understand the problem statement Let us assume we have a topic where messages are sent and there is a consumer who is consuming these ...

Read More »

Want to take your Java skills to the next level?

Grab our programming books for FREE!

Here are some of the eBooks you will get:

  • Advanced Java Guide
  • Java Design Patterns
  • JMeter Tutorial
  • Java 8 Features Tutorial
  • JUnit Tutorial
  • JSF Programming Cookbook
  • Java Concurrency Essentials