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 ....

 

Skinning in Java8 (JavaFX8)

javafx-logo

There has been some changes in JavaFX8 regarding skinning, the most relevants of which are the new CSS API that allows you to create new CSS properties and pseudo-classes for your controls and the Skin class which has become public. Using CSS you can change a lot of the appearance of a control, but there is only so much you ...

Read More »

Subtyping in Java generics

java-logo

Generic types introduce a new spectrum of type safety to Java program. At the same type, generic types can be quite expressive, especially when using wildcards. In this article, I want to explain how subtyping works with Java generics. General thoughts on generic type subtyping Different generic types of the same class or interface do not define a subtype hierarchy linear ...

Read More »

RMI enforcing Full GC to run hourly

java-logo

During all the troubleshooting exercises I have carried out in my career, I have picked up a feeling that the bugs I am after are evolving and becoming meaner and uglier over time. Or maybe it is just my age kicking in. This particular Heisenbug – lookalike this post is about has again kept me awake for more than I ...

Read More »

Attitudes of a Great Software Tester

software-development-2-logo

In my previous post, I explained in my own words the “Attitude of a Great Software Developer“.  This post will focus on the testers.  Developers and Testers are two great personalities that work literally in the opposite direction but towards a common goal of producing good quality software.  One deals with the making aspect of the software and other with ...

Read More »

Object-based micro-locking for concurrent applications by using Guava

java-logo

One of the presumably most annoying problems with writing concurrent Java applications is the handling of resources that are shared among threads as for example a web applications’ session and application data. As a result, many developers choose to not synchronize such resources at all, if an application’s concurrency level is low. It is for example unlikely that a session ...

Read More »

Node.js Package Manager

software-development-2-logo

Node.js standard packages and modules are installed through standard packaging application – called as Node Package Manager(NPM). NPM is the standard for packaging the node.js components and modules. In the packages, the “package.json” is included to write the dependencies in Node.js and the startig file in node package. There are two ways of installing node packages – Local and Global. ...

Read More »

Parameterized JUnit tests with JUnitParams

junit-logo

Parameterized unit tests are used to to test the same code under different conditions. Thanks to parameterized unit tests we can set up a test method that retrieves data from some data source. This data source can be a collection of test data objects, external file or maybe even a database. The general idea is to make it easy to ...

Read More »

Add LATERAL Joins or CROSS APPLY to Your SQL Tool Chain

software-development-2-logo

The T-SQL dialect has known the powerful CROSS APPLY and OUTER APPLY JOIN syntaxes for ages. The SQL:1999 standard had introduced almost equivalent “lateral derived tables”, which are finally supported with PostgreSQL 9.3, or Oracle 12c, which has adopted both the SQL standard LATERAL syntax and the T-SQL vendor-specific CROSS APPLY and OUTER APPLY syntaxes. But what are we even ...

Read More »

Storing Objects in Android

android-logo

One alternative to using SQLite on Android is to store Java objects in SharedPreferences. Here, we’ll look at two different ways to do that. Why not go for SQLite for all storage needs? The reasons can be varied: besides the impedance mismatch between object orientation and relational databases, SQLite might be overkill (brings more overhead) for some simple use cases, ...

Read More »

Common Linux log files name and usage

devops-logo

If you spend lot of time in Linux environment, it is essential that you know where the log files are located, and what is contained in each and every log file. When your system is running smoothly, take some time to learn and understand the content of various log files, which will help you when there is a crisis and you have to look ...

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.