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23 results for: explanation

Linux for Dummies: Ubuntu Terminal

I introduced in the previous article, available here, the basic concepts concerning the Linux world. Today we are going to have a look to some basic operations that we can perform using the terminal in an Ubuntu-like operating system. What is the command line? Shell, terminal and command line are words that commonly stand for a…

Category : Operating systems   27-02-2020   by Alessio Mungelli

Linux for Dummies: Introduction

If you have thought about migrating from Windows to a Unix operating system, or Linux specifically there are things you should know. The goal is to give essential information (and not) to take the first steps in the world of the "penguin". What is Linux? With the word Linux we commonly refer…

Category : Operating systems   27-02-2020   by Alessio Mungelli

10 SEO trends for 2020

In "Ma-No" we have tried to make some predictions with our digital crystal ball and (knowing that we will be wrong about many things) about what will happen in SEO in the next months. These are the ten trends that could mark the evolution of web positioning in 2020. 1. More…

Category : Seo & sem   01-01-2020   by Silvia Mazzetta

Java Design Pattern: Builder Pattern

Today we are going to talk about a creational pattern that in many situations can represent a useful alternative to the construction of the objects using the constructors: the Builder Pattern. The need to introduce alternative mechanisms to those provided by Java for the creation of objects is originated from the fact…

Category : Java   22-12-2019   by Alessio Mungelli

Java Design Pattern: Strategy Pattern

One of the most popular patterns is the Strategy Pattern. It is also one of the easiest patterns. It is a member of the behavioral patterns family, it has the duty of managing algorithms, relations and responsibility among classes. The GoF defines it as follow: It defines a series of encapsulated algorithms…

Category : Java   13-09-2019   by Alessio Mungelli

Java Sorting Algorithm: Selection Sort

Today we are going to analyze a sorting algorithm that is not very efficient but often used in various fields. We are talking abou the Selection Sort. Let's have a look. Intuition The idea behind it is to divide the array to sort into two sub-arrays: the first that contains the sorted data…

Category : Java   22-12-2019   by Alessio Mungelli

Java Sorting Algorithms: Merge Sort

Today we are going to analyze one of the most used sorting algorithms: the Merge Sort. It is part of the Divide and Conquer family, just like the  Quick Sort. Merge Sort offers a better performance despite of the Quick Sort since its complexity remains O(n log n) keeping performances. It is also called "algorithm by fusion" The main defect of the Merge…

Category : Java   14-12-2019   by Alessio Mungelli

Java Sorting Algorithms: Quick Sort

Welcome back to this overview about the Java world! Today, we are going to talk about a renowned sorting algorithm: the Quick Sort. The Quick Sort is not very suitable for educational purposes because its implementation may not be trivial, but at the performance level it offers some advantages that are not indifferent, unlike…

Category : Java   14-12-2019   by Alessio Mungelli

Java Design Pattern: Factory Method Pattern

Going on with the speach about design patterns started previously, we are going to talk about another pattern often used: the Factory Method Pattern. The GoF (Gang of Four Design Patterns) defines it in this way: It defines an interface to create objects, but leaves to the subclasses the decision about the…

Category : Java   05-11-2019   by Alessio Mungelli

Java: introduction to Design Patterns and Singleton Pattern

Anyone with even a minimum experience of programming, should have realized that the majority of the problems have common elements. In fact we often find problems with the same pattern but in different contexts.  For example, a management software for s supermarket and the one for a great industry will operate…

Category : Java   27-10-2019   by Alessio Mungelli

Java 12, finally less verbose?

We all know Java for its characteristics thanks to which, despite more than 20 years have passed since the first version, it is still one of the most studied and most used languages, despite the growing diffusion of Python. However, one of the biggest flaws is the fact that it is…

Category : Java   10-10-2019   by Alessio Mungelli

Wi-Fi 6

  In the second quarter of 2019, Wi-Fi Alliance decided to release the new version of Wi-Fi protocol, innovative already from the name. In fact, if the previous standards had incomprehensible names like IEEE 802.11a, IEEE802.11n and so on, the new protocol is called Wi-Fi 6. This standard introduces some new features.…

Category : Technology   12-09-2019   by Alessio Mungelli

Best Javascript front-end hacking cheatsheets

Best Javascript front-end hacking cheatsheets

JavaScript has a extremely high potential to build cutting-edge web applications. But it's really hard to memorize it by heart. The JavaScript cheat sheets therefore act perfectly as a reminder and a comprehensive reference for developers. All popular and special purpose cheat sheets have been discussed above. You now have…

Category : Javascript   13-02-2019   by admin admin

How to Set up a Fully Functional Mail Server on Ubuntu 16.04 with iRedMail

How to Set up a Fully Functional Mail Server on Ubuntu 16.04 with iRedMail

Setting up your own mail server from scratch on Linux is complex and tedious, until you meet iRedMail. This tutorial is going to show you how you can easily and quickly set up a full-fledged mail server on Ubuntu 16.04 with iRedMail under 30 minutes. What is iRedMail? iRedMail is a shell…

Category : Networking   08-08-2018   by admin admin

8 Free PHP Books  to Read in Summer 2018

8 Free PHP Books to Read in Summer 2018

In this article, we've listed 8 free PHP books that can help you to learn new approaches to solving problems and keep your skill up to date.   Practical PHP Testing This book is aimed at advanced php developers and is comprised of articles from the author's Practical PHP Testing blog series. It…

Category : Php   20-06-2018   by admin admin

11 Guides for Front-end Developers

11 Guides for Front-end Developers

Enjoy our Guides series for for Front-end Developers and don’t forget to let us know in the comments of any others that we haven’t yet included. 1. Can I animate…? Can I animate?” is a site inspired by Can I use, but focused specifically on CSS animations and transitions. The aim is to provide…

Category : Web design   12-12-2016   by admin admin

318 USEFUL TWITTER BOOTSTRAP RESOURCES #6

318 USEFUL TWITTER BOOTSTRAP RESOURCES #6

How Tos Tutorials and Instructions on using Bootstrap Articles CUSTOMIZING BOOTSTRAP Tips and recommendations on getting started with LESS and Bootstrap customization. TWITTER BOOTSTRAP TUTORIAL Up and running with Twitter Bootstrap in 20 Minutes ADDING SWIPE SUPPORT TO BOOTSTRAP'S CAROUSEL Justin Lazanowski writes up how he was able to get Bootstrap's carousel working for touch/swipe…

Category : Web design   18-12-2013   by admin admin

Big Data and Hadoop: an explanation

Big Data and Hadoop: an explanation

Our world is a potential treasure trove for data scientists and analysts who can comb through massive amounts of data for new insights, research breakthroughs, undetected fraud or other yet-to-be-discovered purposes. But it also presents a problem for traditional relational databases and analytics tools, which were not built to handle…

Category : Databases   24-05-2013   by admin admin

Usability: why you should not use horizontal newsticker in your homepage

Usability: why you should not use horizontal newsticker in your homepage

Recently, a client asked me my opinion on tickers. My response was, "They're great for the stock market, and bad for Web pages." A quick little Web search on usability expert Jakob Nielsen's Web site, useit.com, found this quote, from his commentary on Sun's Web site redesign, circa 1997: Almost all…

Category : Web design   17-05-2013   by admin admin

Why is facebook blue? The science behind colors in marketing

Why is facebook blue? The science behind colors in marketing

Why is Facebook blue? According to The New Yorker, the reason is simple. It’s because Mark Zuckerberg is red-green color blind; blue is the color Mark can see the best. Not highly scientific, right? That may not be the case for Facebook, but there are some amazing examples of how colors actually…

Category : Web design   07-05-2013   by admin admin

Google+ Resources to Help You Create a Strategy for Success

Google+ Resources to Help You Create a Strategy for Success

  A successful SEO campaign includes a Google+ strategy, yet many companies are still not thinking about Google+ as such a crucial aspect for SEO. Your typical social media benefits are obvious—on-site engagement, targeted messages, connections and referrals, etc.—but the benefits in terms of ranking on a SERP are still being…

Category : Social networks   03-05-2013   by admin admin

A Big Deal for Brands: Instagram Adds an Identity Layer

A Big Deal for Brands: Instagram Adds an Identity Layer

Your Instagram photos are about to get even more personal. Like its parent company, Facebook, Instagram plans to roll out an added layer of identity to its 100-million-strong photo-sharing service with the introduction of a new section and feature called “Photos of You.” It’s two things, primarily: One, it’s pretty much the introduction of…

Category : Web marketing   03-05-2013   by admin admin

Creating a Notepad app with indexedDB

Creating a Notepad app with indexedDB

indexedDB, which is new in HTML5, allows developers to persist data within the web browser. As a result your app runs both online and offline with powerful query facilities. indexedDB is different from traditional relational databases in that it is an objectStore instead of a collection of rows and columns. You just…

Category : Databases   14-04-2013   by admin admin