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 ....

 

JUnit ExpectedException rule: beyond basics

java-logo

There are different ways of handling exceptions in JUnit tests. As I wrote in one of my previous posts, my preferable way is using org.junit.rules.ExpectedException rule. Basically, rules are used as an alternative (or an addition) to methods annotated with org.junit.Before, org.junit.After, org.junit.BeforeClass, or org.junit.AfterClass, but they are more powerful, and more easily shared between projects and classes. In this ...

Read More »

Java 8 Friday: Java 8 Will Revolutionize Database Access

java-interview-questions-answers

At Data Geekery, we love Java. And as we’re really into jOOQ’s fluent API and query DSL, we’re absolutely thrilled about what Java 8 will bring to our ecosystem. For our Java 8 series, we’re honoured to host a very relevant guest post by Dr. Ming-Yee Iu. Dr. Ming-Yee Iu completed a PhD on Database Queries in Java at EPFL. ...

Read More »

How to use NodeManager to control WebLogic Servers

oracle-weblogic-logo

In my previous post, you have seen how we can start a WebLogic admin and multiple managed servers. One downside with that instruction is that those processes will start in foreground and the STDOUT are printed on terminal. If you intended to run these severs as background services, you might want to try the WebLogic node manager wlscontrol.sh tool. I ...

Read More »

Application Security – Can you Rely on the Honeymoon Effect?

software-development-2-logo

I learned about some interesting research from Dave Mortman at this year’s RSA conference in San Francisco which supports the Devops and Agile arguments that continuous, incremental, iterative changes can be made safely: a study by by the MIT Lincoln lab (Milk or Wine: Does Software Security Improve with Age?) and The Honeymoon Effect, by Sandy Clark at the University ...

Read More »

Java can finally join strings

java-logo

I am sure you were in a situation in which you wanted to join multiple strings. If you were using a programming language other than Java you probably used the join() function provided by the programming language. If you were using Java you could not do this. There was no join() method. The Java Standard Class Library provided you tools ...

Read More »

The Programmer Productivity Paradox

software-development-2-logo

Programmers seem to be fairly productive people. You always see them typing at their desks; they chafe for meetings to finish so that they can go back to their desks and code. When asked, they will say that there is not enough time to produce the code, and the sooner they can start coding, the sooner they will be done. ...

Read More »

How HashMap works in java

java-logo

Most common interview questions are “How HashMap works in java”, “How get and put method of HashMap work internally”. Here I am trying to explain internal functionality with an easy example. Rather than going through theory, we will start with example first, so that you will get better understanding and then we will see how get and put function work ...

Read More »

The Microservice Architecture Sounds Like Service-Oriented Architecture

software-development-2-logo

I didn’t understand the service-oriented architecture. I thought that it was just one of those highly theoretical and very impractical software architecture patterns. In other words, I considered it to be an architecture fanatics’ wet dream. Then I read an article titled Microservices by Martin Fowler, and the service-oriented architecture started suddenly make sense to me. What Changed My Mind? ...

Read More »

Android Wear SDK: Set up “Hello world”

android-logo

In this post I want to describe my first experience with Android Wear SDK.  This is a very simple project just to test how it works and how we can set up the environment. You can refer to this link if you want to have more detailed information. The first thing you have to do is open Android SDK Manager ...

Read More »
Want to take your Java Skills to the next level?
Grab our programming books for FREE!
  • Save time by leveraging our field-tested solutions to common problems.
  • The books cover a wide range of topics, from JPA and JUnit, to JMeter and Android.
  • Each book comes as a standalone guide (with source code provided), so that you use it as reference.
Last Step ...

Where should we send the free eBooks?

Good Work!
To download the books, please verify your email address by following the instructions found on the email we just sent you.