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19 July 2022 10:44
IT News Digest #24: Android 13 final Beta improves security and privacy, Bill Gates vows to drop off world's rich list, UK set to have world's biggest automated drone superhighway
Last week in news: Microsoft joins MicroProfile and Jakarta EE, Microsoft releases fix for Zero-Day Flaw in July 2022.
Inheritance in Java
18 July 2022 16:20
Java Class Cast() Method
In Java, there are different options for casting. One of them is the cast() method of the java.lang.Class class. it is used to cast the specified object to an object of this class. The method returns an object after being cast as...
18 July 2022 15:42
How to Get Back to Learning after a Hiatus?
Quite often, students take long breaks because of burnout, illnesses, family emergencies, or other reasons. Naturally, resuming studying after a hiatus can be tricky since the keys to success are regular coding practice and minimum learning gaps. A long break or studying...
Serialization in Java
18 July 2022 13:21
Serialization and deserialization in Java
Hi! In today's lesson, we'll talk about serialization and deserialization in Java. We'll start with a simple example. Imagine that you're a computer game developer. If you grew up in the 90s and remember the game consoles of that era, you probably know that they lacked something we take for granted today...
15 July 2022 13:25
My only regret is that I did not do this earlier: a story of Alexandr, developer at CodeGym
We continue a special series on our blog about developers who’ve studied at CodeGym and now work in our company, creating and improving the product.
15 July 2022 8:22
Enum class in Java
Hi! Imagine that you've been given the following task: create a class that implements the days of the week. At first glance, this seems rather straightforward. Everything seems to be fine, but there is one problem: you can pass any text to the constructor of the DayOfWeek class...
14 July 2022 11:00
HashMap: what kind of map is this?
Hi! Previously, we've studied data structures where the elements are stored as themselves. In an array or an ArrayList/LinkedList, we store some number of elements. But what if our task changes a little? Imagine the following task: create a list of 100 people that stores each person's name and passport number ...
Strings in Java
14 July 2022 10:43
Substring in Java
This article is about substring () methods in Java language. Here you will find the explanation of how using these methods, find out how they work and get some beneficial examples. Substring in general is a contiguous sequence of characters inside the String. It could be a part of the String or the whole String as well...
14 July 2022 10:29
Hi! All the latest lessons have been devoted to ArrayList. This data structure is very convenient and useful. It can handle plenty of tasks. But Java has lots of other data structures. Why? Above all, because the range of tasks is enormous, and the most efficient data structures are different for different tasks ...
14 July 2022 8:58
Hi! In previous lessons, we did a deep dive into arrays and reviewed common examples of working with arrays. In general, arrays are super handy. And. as you've already noticed, you can do a lot with them :) But arrays do have a number of shortcomings ...
13 July 2022 12:49
IT News Digest #23: Apple’s new feature adds “extreme” protection to devices, Twitter sues Elon Musk to force him to complete acquisition, Google has told employees that it’ll be “slowing down the pace of hiring”
Last week in news: Canadian internet giant Rogers says it will give credits...
11 July 2022 14:53
The Most Popular Influencers in Java to Follow
With more than 25 years of existence, Java is still at its peak and remains one of the most widely-used programming languages for app development. No wonder, it’s also one of the most popular languages in media. So, if you’re going to enhance your Java knowledge...
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