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Pavlo Plynko
Java Types
24 July 2022 15:08
Java Variables
In this article, we are going to explain to all Java learners what Java variables are and how to work with them. A variable in Java can be thought of as a box. This "box" has a certain size...
Lucy Oleschuk
Random
22 July 2022 15:44
Who Is a Java Developer? Is This Career In Demand Right Now?
Java has so many advantages that it's pretty hard to put them all together. Despite its 25+ years of existence, it remains one of the world's most extensively used programming languages for a good reason...
Jesse Haniel
Methods in Java
20 July 2022 10:34
Java Random nextInt() Method
There are several options for creating a pseudo-random number generator in Java language. One of these options is the use of the java.util.Random class and the nextInt() method. In this article, we are going to talk...
Milan Vucic
Java Collections
19 July 2022 13:40
How to iterate a Map in Java
In this post, we will learn different ways to iterate a Map in Java. Some of its common ways and how to use those with the help of examples. Before getting started, we assume you understand interfaces and maps in Java. However, here’s a quick recap for you...
John Selawsky
Statements in Java
19 July 2022 13:09
IF ELSE Java Statements
An if else statement in Java is a conditional statement. Java uses conditions just like mathematics, allowing comparisons that yield Boolean results. So you can test inputs to see how they compare to a static set of values that you specify. Because the result is Boolean, there are only two possible results...
CodeGym
Random
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.
Jesse Haniel
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...
Lucy Oleschuk
Random
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...
Volodymyr Portianko
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...
Yuliia Tunik
Success Stories
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.
Milan Vucic
Java Classes
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...
Milan Vucic
Java Collections
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 ...
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