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A concurrent collection is a [collection][1] which permits access by more than one thread at the same time. Different threads can typically iterate through the contents of the collection and add or remove elements. The collection is responsible for ensuring that the collection doesn't become cor...

PrestaShop contains within itself many open source libraries

We will learn how to create Error objects and how to throw & handle errors in Node.js Future edits related to best practices in error handling.

With node 6 becoming the new LTS version of node. We can see an number of improvements to the language through the new ES6 standards introduces. We'll be walking through some of the new features introduced and examples of how to implement them.

How to append data to an already existing Excel document.

Functions as First-class members means, it can enjoy privileges just like Objects does. It can be assigned to a variable, passed on to a function as parameter or can be used as return type.

.bash_profile, .bash_login, .bashrc, and .profile all do pretty much the same thing: set up and define functions, variables, and the sorts. The main difference is that .bashrc is called at the opening of a non-login but interactive window, and .bash_profile and the others are called for a login she...

A customization of the Android RangeSeekBar proposed by Alex Florescu at https://github.com/anothem/android-range-seek-bar It allows to define a step value (increment), when moving the seek bar 1- Add the increment attribute in attrs.xml <attr name="increment" format="integ...

A demonstration of how the producer-consumer pattern is implemented in Ada. function Scalar'Image (Argument : Scalar'Base) return String; task Task_Name; task Task_Name is Entries end; task body Task_Name is Declarations begin Code end; entry Entry_Name; accept Entry_Name; exit; T...

Maven allows you to implement and use custom plugins. These plugins allow additional behaviour to be bound to any phase of the Maven lifecycle. Each Maven goal is created by implementing a MOJO (Maven Ordinary Java Object): a Java class implemented with annotations that describes how to invoke it. ...

Sometimes you need to generate the skeleton for the test cases based on the classes you have in your project.

This tutorial will show you how to use Weka in JAVA code, load data file, train classifiers and explains some of important concepts behind machine learning. Weka is a toolkit for machine learning. It includes a library of machine learning and visualisation techniques and features a user friendly G...

In this post we are going to discuss how the concept of Eventloop emerged and how it can be used for high performance servers and event driven applications like GUIs.

Like many other Version Control Systems, Git has a way to fire off custom scripts when certain important actions occur. There are two groups of these hooks: client-side and server-side. Client-side hooks are triggered by operations such as committing and merging, while server-side hooks run on netwo...

This topic is about setting up and using OpenGL ES 2.0+ on Android. OpenGL ES is the standard for 2D and 3D accelerated graphics on embedded systems - including consoles, smartphones, appliances and vehicles.

Acumatica ERP lets you define attributes for flexible, meaningful classification of an Entity (Lead, Stock/Non-Stock Items Etc.) as required for your company’s specific needs. An attribute is a property that enables you to specify additional information for objects in the system. Attributes are defi...

In the App Programming Guide for iOS: Remove sensitive information from views before moving to the background. When an app transitions to the background, the system takes a snapshot of the app’s main window, which it then presents briefly when transitioning your app back to the foreground. A...

PowerShell Package Management allows you to find, install, update and uninstall PowerShell Modules and other packages. PowerShellGallery.com is the default source for PowerShell modules. You can also browse the site for available packages, command and preview the code.

This section provides an overview of what selenium-grid is, and why a developer might want to use it. It should also mention any large subjects within selenium-grid, and link out to the related topics. Since the Documentation for selenium-grid is new, you may need to create initial versions of ...

Downloads This chapter contains useful downloads like the webdrivers and link to browsers Drivers Place all the drivers in your path variable Chrome driver FireFox driver Microsoft Edge driver Opera driver Browsers Chrome FireFox Microsoft Edge Opera