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Random EN
28 February 2021 0:00
Comparison of objects: practice
This is the second of the articles devoted to comparing objects. The first of them discussed the theoretical basis of comparison - how it is done, why and where it is used. In this article we will talk directly about comparing numbers, obje
articles
Random EN
28 February 2021 0:00
Enumerations in Java (java enum)
When programming, we often encounter the need to limit the set of valid values for a certain data type. So, for example, the day of the week can have 7 different values, the month of the year can have 12, and the season can have 4. To solve
Эллеонора Керри
Random EN
28 February 2021 0:00
Who is a QA engineer and how to become one
Now many people dream of finding a job in IT due to the relatively high salaries in this field, as well as the stable demand for such specialists in the labor market. Most often, these dreams are dashed by the need to obtain specialized edu
ColdDeath
Random EN
28 February 2021 0:00
Connecting the Jackson library in level 33
Hi all! Reached level 33, lectures on JSON. The lecture provides a link to download this framework, but describes how to connect it. " " The link will take you to a page with 3 elements: It’s not clear which one to download. Most likely eve
DefNeo
Random EN
28 February 2021 0:00
Level 30. Answers to interview questions on the level topic
What is NaN? NaN (English Not-a-Number) is one of the special states of a floating point number. Used in many mathematical libraries and mathematical coprocessors. This condition can occur in various cases, for example, when a previous math
Javin
Random EN
28 February 2021 0:00
IntelliJ IDEA from a smartphone/tablet?! - It turns out that it is possible!
AIDE is not bad for working on Android (http://www.android-ide.com/), but you quickly get used to the capabilities and convenience of IntelliJ IDEA. And when you spend more time not at a stationary personal computer, but with a smartphone,
GreenFrog
Random EN
28 February 2021 0:00
Review of the book Head First Java
Good afternoon, dear Javars and Javarashites! While completing the JavaRush course, I also read recommended books. Recommended reading book #1 - (Head First Java By Bert Bates, Kathy Sierra). The book is available in Russian in paper and el
Артем Панасюк
Random EN
28 February 2021 0:00
How to learn Java if you are already over 30...
Just think, 30-something is not a reason to write yourself off as scrap and consider yourself unfit for training. Setting a goal, solving problems, filtering and absorbing information is what you need if you really want to become a programm
Зепп Бранниган
Random EN
28 February 2021 0:00
OOP principles
Java is an object-oriented language. This means that you need to write Java programs using an object-oriented style. And this style is based on the use of objects and classes in the program. Let's try, with the help of examples, to understa
Alex
Random EN
28 February 2021 0:00
Rating of programming languages
There is no one right answer to the question of which programming language is the best. Each language was created to solve specific problems. Over time, some of them lost relevance and faded into the background. The most popular programming
Зепп Бранниган
Random EN
28 February 2021 0:00
Ternary operator in Java
Hello! Today's lecture will not be very long, but definitely useful :) We will talk about the so-called . “Ternary” means “triple”. This is an alternative to the conditional operator , which you are already familiar with. Let's give an exam
Зепп Бранниган
Random EN
28 February 2021 0:00
Enum in Java: how to use the class
Hello! In this article I will tell you about Java Enums. Imagine that you have been given a task: . At first glance, there is nothing complicated about this, and your code will look something like this: And everything seems to be fine, but
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