As a junior full stack programmer in the betting team of the MozzartBet IT sector, one of the challenges that motivate me daily is, for example, how to create betting transactions collections in order to represent the player’s calculation, and then process the whole collection to find out how much a player has spent money. For most of these problems, the use of Java 8 is most often imposed. In order to speed up processing, I rely on multi-core architecture, but writing parallel code is difficult and error-prone, and standard processing of collections is far from perfect in Java.
Hello, Java enthusiasts and professional developers. If you ever had to face the challenges of one-way server-client communication and are searching for a straightforward solution, you came to the right place. The technology we will go through in this short blog presents an easy and effective solution.
Amazon EC2 stands for Elastic Cloud Computing. It is a web service that provides application hosting on virtual machines called instances using simple interfaces. Main benefits are reduced cost of virtual machines compared to physical ones, fast and simple maintenance and no downtime.
Amazon EC2 provides elastic web-scale computing which enables you to increase or decrease capacity within minutes.
You have complete control over your instances as you would have over physical ones. It is a flexible cloud hosting service that gives you choice of instance types, operating systems and software packages.
Amazon EC2 is highly secure and works in conjunction with Amazon VPC (Virtual Private Cloud) to provide security and robust networking functionality.
It is very simple to start with and there is an option to try Amazon EC2 for free.
Call it a cliche or anything you like, but when Wikipedia gives you the perfect definition of debugging, trying to come up with your own feels pointless – ‘debugging is the process of finding and resolving defects or problems within the program that prevent correct operation of a computer software or system’.
The term itself was created when a moth got stuck in a relay in a Mark II computer at Harvard University while Admiral Grace Hopper was performing an operation on it in the 1940s.
An actual, real live bug.
Handling asynchronous events in React / Redux can sometimes be quite challenging. Up to some point, we can handle async events manually by bridging different debounce functions and components’ states, which ultimately bloats our components.
So, in order to separate our view and business logic and keep the code clean, we’ll need some code abstraction.
When .NET Framework was released 16 years ago, it served as a general application development platform for Windows desktop and Web applications.Shortly after, the .NET Compact Framework was released as a subset of the .NET Framework that fit the footprint of smaller devices, specifically Windows Mobile. The idea behind that was to separate code base from the .NET Framework and it included the entire vertical: a runtime, a framework, and an application model on top. Ever since that, this subsetting was repeated many times with: Silverlight, Windows Phone and Windows Store. This lead to fragmentation because the .NET Platform isn’t a single entity but a set of platforms, owned by different teams, and maintained independently.
Why should we write tests?
Many young and less experienced developers think that writing test is a waste of time, and unnecessary work. But everyone who has experience with a big/long-term project, does not share that opinion. Firstly, with a test you can ensure that your code works as it expected with given inputs, and secondly every later change of your code will be easier and safer, tests will warn developer if developer breaks a functionality.
What is BI Business Intelligence and to whom it is intended
Business Intelligence (BI) is technology led data analysis process and representing useful data necessary for leaders, managers and other corporate users to make positive and right business decisions. BI includes a wide spectrum of tools, applications and methodologies which enable organizations collecting data from internal information systems and/or external sources as a result of business processes (transaction databases – e.g. ATM cash flow; remote readers of electrical energy consumption, water, gas), Excel tabeles and other forms of generated reports.
After a few years of freelance as a Front-end developer, I started looking for a job in big companies in order to improve my knowledge by working on big and demanding projects. Whenever I applied for a job, I had been given a test-task to ascertain my
knowledge and skill level. During that period, I realized I was wasting a lot of time on setting up the project and doing some of the most basic things.