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CS50
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Зепп Бранниган
Random EN
8 August 2023 10:14
Multithreading in Java: essence, "pluses" and frequent pitfalls
Hello! First of all, congratulations: you have reached the topic of Multithreading in Java! This is a serious achievement, there is a long way behind. But get ready: this is one of the most difficult topics in the course. And the point is n
Нина Можарская
Random EN
8 August 2023 10:14
Pattern (Template) Builder
This pattern is recommended when a class has a large number of parameters of the same type and it is difficult to remember their order and purpose.
Aleksandr Zimin
Random EN
8 August 2023 10:14
Contracts equals and hashCode or whatever it is
The vast majority of Java programmers, of course, know that the methods and are closely related to each other, and that it is desirable to redefine both of these methods consistently in their classes. A slightly smaller number know why this
Зепп Бранниган
Random EN
8 August 2023 10:14
access modifiers. Private, protected, default, public
Hello! In today's lecture, we will get acquainted with the concept of " " and consider examples of working with them. Although the word “get acquainted” will not be quite correct: you are already familiar with most of them from previous lec
Игорь
Random EN
8 August 2023 10:14
Little tricks with Heroku
Let's imagine a situation. You completed the JavaRush course, completed an online internship, and you have your first project on the PaaS platform . You send out resumes and start going to interviews. And at one of them you are asked to sho
Зепп Бранниган
Random EN
8 August 2023 10:14
Difference between abstract classes and interfaces
Hello! In this lecture, we will talk about how abstract classes differ from interfaces and look at examples with common abstract classes. We devoted a separate lecture to the differences between an abstract class and an interface, since the
Зепп Бранниган
Random EN
8 August 2023 10:14
Default methods in interfaces
Each new version of Java is different from the previous ones. Here's an example of the changes from the material we've been going through: Before Java 5, there were no 's in the language. So Java 8 is noticeably different from Java 7. Most
Viacheslav
Random EN
8 August 2023 10:14
For and For-Each Loop: a tale of how I iterated, iterated, but not iterated
are one of the basic structures of programming languages. For example, the Oracle website has a section called " " that has a separate lesson called " " for loops. Let's refresh the memory of the main thing: The loop consists of three expre
Nikita Koliadin
Random EN
8 August 2023 10:14
JPA Entities and DB Relationships
Good day, colleagues! This material is intended for those who already have an idea about the organization of databases (hereinafter simply - "Database"), minimal knowledge of how Object-Relational Mapping works (hereinafter simply ), and it
Зепп Бранниган
Random EN
8 August 2023 10:14
Interfaces in Java
Hello! Today we will talk about an important concept in Java - interfaces. You are probably familiar with the word. For example, most computer programs and games have interfaces. In a broad sense, an interface is a kind of “remote control”
Нина Можарская
Random EN
8 August 2023 10:14
StringBuilder class in Java 8 with a practical example
The class creates immutable strings. This means that if you apply any operation to a string or operations to a string, then a new string will be built as a result. If this new string is not assigned to any variable, the result of the operat
Petr Gorskin
Random EN
8 August 2023 10:14
Modifiers or how to enchant in the Java world
Good galactic time of day, comrades! This is my first interplanetary manuscript, and since I am an engineer, some concepts may be interpreted in an extraterrestrial language. In my opinion, Java is like an endless corridor with doors (packa
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