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Run Unit Tests in Maven

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Running unit tests in maven is quite simple and in this tutorial we will see how to configure maven to run unit tests

How to build an Asynchronous Turn-Based Game ?

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Here is a e-book to guide you step by step for developing a multiplayer turn-based games.This book has been written to make you understand the mechanics behind Turn-based Gaming.When you are finished reading with it, you will be able to make your own Turn-based and Challenge-based Games

The 10 most useful HTML and CSS tools for Web Developers

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This time I'll be taking a look at the 10 most useful HTML and CSS tools for web developers, much of which helped to improve productivity and get the most out of your skills.

Best Free WordPress Themes With Premium Features

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We would like to present our readers with some hand picked choices of Free Responsive WordPress Themes for your new or next website venture. Enjoy !

Best Countries to Work and Live in as a Developer

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Ever wondered what you can earn, as a Developer, in different countries? And more over, where is the best to relocate for work by considering the value for money that you will get in specific countries?

Getting Started with Spring Data Solr

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An Introduction into the Spring Data Solr project that shows how to use Spring Data repositories to access Solr Features.

Qt 5.2 Release Candidate 1 Available

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I am happy to announce that the Qt 5.2 Release Candidate 1 is now available. We are now approaching the final steps towards Qt 5.2 final release which is planned to be released in the coming weeks. It has been a busy month since we released Qt 5.2 Beta and we have fixed a large […]

Qt Creator 3.0 RC1 released

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We just released the Qt Creator 3.0 release candidate, together with the Qt 5.2 release candidate. We have been doing a lot of bug fixing since the beta release, and think that Qt Creator 3.0 is now relatively close to what we would like to release as the final. So we would really like you […]

Fundamentals of C# Programming â€“ Algorithms and Complexity

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This video discusses the algorithms complexity and data structures efficiency in C#. Your will learn to understand the algorithms complexity and asymptotic notation. This presentation also discusses the fundamental data structures and how to choose the right data structure.

Jamie Allen: What you need to know about Lambdas

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In this JAX London 2013 Keynote, Jamie Allen discusses best practices for using Lambdas in Java and other JVM-based languages, and shows how we can make these constructs more usable in production. He also reviews concepts associated with lambdas to make sure everyone is on the same page, such as closures, higher order functions and the relationship between methods and functions and how they relate to Lambdas.

XML Example With RESTEasy+ JAXB

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In this example we are going to see how you can integrate RESTEasy with JAXB (Java Architecture for XML Binding) to create RESTful services that consume and produce XML streams. As you probably know JAXB is used to marshal a Java Object to XML, and ummarshal an XML file (or stream in general) to Java Object.

Upload Files over the Cloud With Single API call

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This module allows you to upload files to the cloud that can later be accessed through their respective URLs. Uploading files to the cloud is especially useful for Mobile/Device Apps as this minimizes the App footprint on the device.

Java Day Riga 2013 â€“ What a great day to remember!

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My experiences about Java Day Riga 2013.

Zucchini: a Visual Testing Framework for iOS Applications

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Zucchini is an open source visual functional testing framework for iOS applications based on Apple UIAutomation. It allows the usage of freeform text for interaction scenarios definition.

Develop Java Mobile and Embedded Apps

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This session covers Java ME Platform SDK, a state-of-the-art toolbox for developing mobile and embedded applications. It provides device emulation, a standalone development environment, and a set of utilities for rapid development of Java ME applications.

Batch processing and the Java Enterprise Edition (JSR-352, JEE7, Spring Batch)

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New blog post about batch application deployment models in a JEE environment (JSR-352, JEE7, Spring Batch).

Authorization in Spring security

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We knows how to configure Servlet based authentication in our web.xml. We also know how to use the request.isUserInRole() method when we need programmatic checks. Is there something similar available with Spring ? A look at how authorization works in Spring

Nymi, The Heartwave-Sensing Wristband For ID Authentication, Launches SDK For 6K+ Developers

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Toronto-based startup Bionym has launched an SDK for its forthcoming identity-authenticating wristband, Nymi. It said today that more than 6,000 developers have registered their interest in building software that hooks into the heartwave-sensing bangle. Thus far, it's managed to pre-sell more than 7,000 of the $79 wristbands, which are due to ship in Spring 2014.

MongoDB is dead. Long live Postgresql

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Our company use Errbit very active, Errbit connect to more than one hundred projects that generate tens of thousands of errors per day.

Java Based Frameworks Perform Faster than .NET, Rails or Python! (Findings)

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Over the years, Oracle is trying hard to push the Java as one-size-fits-all solution, and has left no stone unturned to convince the world about its performance. The recent benchmarks would definitely boost its confidence in Java for sure.

Increase Engagement with Social Leaderboards in Unity and Facebook SDK

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App42 Unity SDK allows a developer to save game score of a user and to maintain a leaderboard among the friends in Facebook and that too with global ranks.

Steps to implement Memcache in Codeigniter - PHP CMS Frameworks

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In this article, we are going to discuss about How to implement memcache in CodeIgniter (CI). Memcache is used to increase the performance of the websute (ie, speed-up the website)

Web resources optimization in Java Web applications

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There are cases where web resources such as css and javascript resources are spread in different files.This may have an impact in the load time of a web page and in the overall performance of the application. WRO4j is a very useful API that minimizes and compresses web resources such as css and javascript files.

30 Easy Tutorials On How To Build An App

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Apps of various types in a lot of different categories are present out there in the app stores of Android, Apple iOS and other platforms. From there these apps can be downloaded and taken advantage of. Apps can actually make a lot of money if they are designed nicely, have a good and unique idea, are easy to use and look nice.

Easily Create Shopping Cart App with App42 Backend APIs

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This module provides cloud persistent Shopping Cart Service. App Developers can use this service to create a shopping cart, add items and check out. This module also enables maintenance of transaction records and their corresponding payment status.

Responsive email design for beginners

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For those of you new to the dark, disturbing world of email design, here is a rundown of the basics; Why designing email which look the same for everyone is a next-to-impossible task, the archaic methods to work around these issues, making emails look good on mobile devices, and a few tips for building decent email templates.

Creating calendar events in Java

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iCalendar is file format that enables the exchange of calendar events via email etc.A very useful API for creating and managing calendar events and iCalendar files is ical4j and in this tutorial we will see how to create and save a calendar event.

Mock HTTP endpoints easily with Mock Server

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An API to easily mock any system or service you integrate with via HTTP from either Java or JavaScript.

Increase your Active Game Play Time with Reward Management

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The Reward and Reward Points allow the Game Developer to assign rewards to an user and redeem the rewards. E.g. One can give Swords or Energy etc. The services Game, Score, ScoreBoard, Reward, Reward Points can be used in Conjunction for complete Game Scoring and Reward Management.

PHP Basic Interview Questions and Answers for Web Developers

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In this article on PHP Interview Questions, I have compiled a list of very basic and fundamental PHP interview questions and answers for web developers. Every PHP web developer should know these basic questions of PHP. So, if you are preparing for any interview in PHP development, you should go through the following list of PHP basic interview questions. There PHP questions are based on very simple PHP concepts like basic introduction to PHP, Sessions and Cookies in PHP, Input / Output in PHP, Error Management in PHP, MySQL database connectivity in PHP, SQL Injection in PHP, Encryption and Decryption in PHP, Sending Emails in PHP, datatypes in PHP and many more. Lets have a look...

Mixing Command & Transaction Script Patterns

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Patterns of Enterprise Applications Architecture by Martin Fowler defines Transaction Script pattern that is one of domain logic patterns. In his book Martin Fowler also gives a hint how to use Command Pattern by Gang of Four with Transaction Script. In this posting I will show you some real-life code that makes use of both patterns.

Creating custom exceptions in Java

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Exceptions in Java can be divided into two categories;Checked and Unchecked exceptions. In general checked exceptions must be caught or re thrown while uchecked exceptions may occur during the execution of a program due to wrong method arguments etc-.

The Flawed Project-as-a-Ship Analogy

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It is common for a project leader to see his or herself as the captain of a ship. The project is seen as the ship, and the developers are the crew. When storms hit- the project is behind schedule, over-budget, below quality, falling short of projections and expectations- the captain doubles down and starts to behave more captain-like to stabilize the ship.

How to Update a Live Tile in a Background Agent with Web Data on Windows Phone

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In one of my recent projects, I needed to update the live tile of the app via a background agent with data from a WordPress based web site. I did what I always do when implementing a feature I never used before: researching.

Getting started with ELMAH and ASP.NET MVC

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We all need a framework to log exceptions in our web application. Today, We are going to learn about some of those. ELMAH (Error Logging Modules and Handlers) is an application wide error logging framework. How can we install it in ASP.NET MVC?

Get Up And Code 30: What Do You Do When You Screw Up?

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Fitting for this holiday, in this episode Iris and I talk about what you should do when you screw up.

Team Foundation Server & Build Automation

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This article will focus on achieving build automation using TFS. However, if you want to understand the architecture, configuration, project creation, product backlog, managing SPRINT and releases etc. you can go through these articles

Page Instrumentation - ASP.NET 4.5

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ASP.NET 4.5 include a hidden gem called Page Instrumentation, very few people aware of this gem. You can use page instrumentation in ASP.NET 4.5 WebForm and MVC 5 or 4(assuming it targets 4.5). It allows you to inspect/instrument a web form or a mvc view during the rendering process. Page instrumentation are useful in scenarios when you have some performance issues regarding view engine rendering. In this article, I will show you how to use this feature in ASP.NET 4.5.

Building a Custom CSS3 Pagination User Interface

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n this tutorial I want to demonstrate a collection of CSS techniques for designing pagination. Once you combine these designs with content systems like WordPress you can see how the interfaces really work in action.

Mapping domain model objects to wsdl generated objects in Java

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There are cases where an application must communicate with an external web service and most of the times the mapping between the application's domain objects and wsdl objects is manually done through custom converters and processors. Dozer framework is a mapping framework that simplifies the mapping between two objects and in this tutorial we will see how to map domain objects to XMLBeans generated wsdl objects.

REM to PX Browser Function with Sass

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Performance is a key skill for front-end developers today. New CSS3 and HTML5 features help improve our apps but sometimes these features aren't well supported. This is where Graceful Degradation comes in. You want to leverage the extended features of new browsers but can't afford to ignore support for legacy browsers.

Speaking Bites: 5 Traits Putting Your Audiences to Sleep

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Today we held an internal, yep, an internal only mini Red Hat Summit. This is a chance for talks to be presented select content to an internal worldwide audience at Red Hat, but that does not mean that all the content is confidential. That means I would be remiss if I didn't share my session content.

The Internet of Dogs: How to Build a $50 IoT Dog Collar That Locates Your Pet

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I love side projects. They give me the opportunity to flex my creative muscles and tinker with tech like the Internet of Things (IoT) in new ways. Fortunately, I didn't have to look far for my next one; a common conundrum for pet owners fueled this concept for an IoT dog collar. My dog had been out in the backyard for a while. When I decided it was time to bring him back into the house, I couldn't find him anywhere! After several minutes of searching and calling his name, I found him napping in the shade of a tree. If this scenario sounds all too familiar to you, then this post is for you!

A Guide to Understanding Sidecar Deployment With Istio Service Mesh

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Industry analysts predict that 83% of all enterprise workloads will be in the cloud by the end of 2020. To leverage the scalability and flexibility of the cloud, developers can deploy independent microservices into their cloud environments. Yet, transitioning to a distributed microservice architecture isn't without its challenges. As organizations grow, it becomes increasingly difficult to connect, secure, control, and monitor those services. That's where Istio service mesh comes in.

Writing Functional Interfaces in Java

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In this article, we will highlight the purpose and usability of a functional interface in comparison with several alternatives. We will look at how to evolve the code from its basic and rigid implementation to a flexible implementation based on a functional interface. For this, let's consider the following Melon class: Java x 12 1 public class Melon { 2 3 private final String type; 4 private final int weight; 5 private final String origin; 6 7 public Melon(String type, int weight, String origin) { 8 this.type = type; 9 this.weight = weight; 10 this.origin = origin; 11 } 12 13 // getters, toString(), and so on omitted for brevity 14 }

Kubernetes Installation in RedHat/CentOS

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Welcome! In this article, we are going to look at how to configure Kubernetes cluster for container orchestration. Before reading this article, you should know basic core concepts of kubernetes components and basic administration in Redhat OS or CentOS

Retry Pattern: Examples and Recommendations

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Today I would like to talk about Retry pattern. In distributed applications, where constant communications are made between services and/or external resources, temporary or transient failures (transient failures) can occur when interacting with these environments. These failures can be caused by different reasons, among the most common are the momentary losses of connection to the network, temporarily unavailable services, exceeded response times, etc. Normally these errors are solved automatically and in a short period of time so that if the service or resource is invoked, it immediately responds correctly. A classic example of a transient error is the failure to connect to the database due to a peak of simultaneous connections that exceed the maximum number allowed per configuration.

Databricks Delta Lake Using Java

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Delta Lake is an open source release by Databricks that provides a transactional storage layer on top of data lakes. In real-time systems, a data lake can be an Amazon S3, Azure Data Lake Store/Azure Blob storage, Google Cloud Storage, or Hadoop Distributed file system. Delta Lake acts as a storage layer that sits on top of Data Lake. Delta Lake brings additional features where Data Lake cannot provide.

Generating Classes at Runtime and Invoking Their Methods With and Without the Use of Reflection in Java 8 and Later

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The generation of classes at runtime is an advanced topic that requires a lot of knowledge that can be reduced if you use particular libraries that perform the most complex functions to accomplish this task.So, for this purpose, we can use the ClassFactory component and the sources generating components of the Burningwave Core library. Once the sources have been set in UnitSourceGenerator objects, they must be passed to loadOrBuildAndDefine method of ClassFactory with the ClassLoader where you want to define newly generated classes. This method performs the following operations: tries to load all the classes present in the UnitSourceGenerator through the class loader, if at least one of these is not found it proceeds to compile all the UnitSourceGenerators and uploading their classes on class loader: in this case, keep in mind that if a class with the same name was previously loaded by the class loader, the compiled class will not be uploaded.

Using CRUD Operations in MongoDB in Node.js Using Mongoose

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MongoDB CRUD Operations Mongoose provides a simple schema-based solution to model your app data. In this post, we will see how we can use it to write basic CRUD operations in Node.js. Understanding Schema First let's write a Mongoose schema for a sample requirement. Example entity is Team, where I want to save: