12 results for: geeks
Data structures in Java - Linked Lists
With 2020 we are going to look at a new aspect of programming: data structures. It is often the case that everyone uses structures provided by the various programming languages. The objective will be to have a general idea of how they work and their internal mechanisms. Often we will…
Category : Java 22-10-2020 by Alessio Mungelli
Mobile cryptophones on the market (legals)
As we have said, it is a market often at the borders of legality, also because these devices are particularly used by criminals. Some models, however, are also available through standard commercial channels, while others are sold through direct distributors and cash payment. We list some of them here, with the…
Category : Security 15-09-2020 by Silvia Mazzetta
The package managers npm and yarn: main differences
Npm and yarn are package managers that help to manage a project’s dependencies. A dependency is, as it sounds, something that a project depends on, a piece of code that is required to make the project work properly. In the past we had only npm but it had so many issues…
Category : Javascript 19-08-2020 by Luigi Nori
What is the origin of the word SPAM?
It is 40 years since the first spam e-mail was sent. Surely most of the readers of this blog had not yet been born, as well as annoying mail with which we are bombarded in our emails, social networks, or mobiles already existed long before our existence. Have you ever wondered what the origin of the…
Category : Web marketing 03-08-2020 by Janeth Kent
Cross-Origin Resource Sharing (CORS) and examples of XSS and CSRF
Cross-Origin Resource Sharing (CORS) enables web clients to make HTTP requests to servers hosted on different origins. CORS is a unique web technology in that it has both a server-side and a client-side component. The server-side component configures which types of cross-origin requests are allowed, while the client-side component controls…
Category : Javascript 30-01-2020 by Luigi Nori
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 31-03-2023 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
How to Become an Automation Engineer
In today’s climate, IT professionals have just about as diverse a range of career options as anybody else. One such pathway that such a professional can take is automation engineering. If you have a passion for machinery, enjoy being detail oriented, and fancy making a boatload of cash, then this…
Category : Technology 08-02-2019 by Janeth Kent
The Best Lightweight Linux Distributions For Older PC's
What do you do with your old computers? The one which once had good hardware configuration but now those are considered outdated. Why not revive your old computer with Linux? I am going to list seven beginner friendly lightweight Linux distributions that you can use on your older PC. Best Lightweight…
Category : Operating systems 12-03-2017 by Janeth Kent
Useful list of commands for linux server management
List of checks that you can perform on a linux server to try and figure out why it keeps going down Disk Space: df -h (Make sure you have enough disk space) Memory: free -m (Check you're not out of memory) Processes / Load average top (shift + m) htop (Check for processes that are taking up a lot of…
Category : Networking 09-07-2013 by Janeth Kent
Mini Microscope For iPhone, For Pure Geeks
The Mini Microscope for iPhone transforms your smartphone into a mini microscope capable of 60x magnification. Attach the Mini Microscope to the camera lens of your iPhone 4 or 4S and you can zoom in on just about anything. Three built-in bright white LEDs will shed light on your subject…
Category : News and events 15-05-2013 by Janeth Kent
