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Зепп Бранниган
Random EN
28 February 2021 0:00
Wrapping, unwrapping and packing
Hello! You are already quite familiar with primitive types, and have worked with them a lot. Primitives in programming, and in Java in particular, have many advantages: they take up little memory, thereby increasing the efficiency of the pr
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
Зепп Бранниган
Random EN
28 February 2021 0:00
8 common mistakes of novice programmers
Hello! Today we will look at a list of 8 common mistakes made by beginning (and not only) Java developers. You will find many such collections on the Internet: many of them are similar to each other. When we compiled this list, we were guid
Зепп Бранниган
Random EN
28 February 2021 0:00
Relationships between classes. Inheritance, composition and aggregation
Hello! Today we will take a closer look at another principle of object-oriented programming (OOP) - inheritance. At the same time, we will study other types of relationships between classes - composition and aggregation. This topic will not
Эллеонора Керри
Random EN
28 February 2021 0:00
Share your knowledge, get a prize! [competition from JavaRush]
We at JavaRush love to explain complex things using simple examples and share knowledge. And we are happy that we managed to gather a strong community of equally caring people. This year we started a new tradition: holding a competition for
Зепп Бранниган
Random EN
28 February 2021 0:00
Encapsulation Principles in Java
Hello! Today's lecture will be devoted to encapsulation and we will start it right away with examples :) In front of you is a familiar soda machine. I have one question for you: how does it work? Try to answer in detail: where the glass com
Viacheslav
Random EN
28 February 2021 0:00
UML: from theory to practice
I think everyone has heard in childhood such a saying as “ .” It's the same in programming. It's always better to think about the implementation before you spend time executing it. Often during implementation you have to create classes and
Зепп Бранниган
Random EN
28 February 2021 0:00
Abstract classes in Java with specific examples
Hello! In previous lectures, we and figured out what they are needed for. Today's topic will have something in common with the previous one. Let's talk about in Java. You probably remember what “abstraction” is - we’ve already covered it :)
Зепп Бранниган
Random EN
28 February 2021 0:00
Practice of using polymorphism
Hello! Today we are finishing a series of lectures on the principles of . In this lesson we will talk about polymorphism. Let's look at this statement in more detail. Let's start with the first part: "the ability to work with multiple types
Зепп Бранниган
Random EN
28 February 2021 0:00
Method overriding mechanism or Override in Java
Hello! You already use methods in Java and know a lot about them. You've probably encountered a situation where there were many methods in one class with the same name but different arguments. If you remember, in those cases we used the met
Petr Gorskin
Random EN
28 February 2021 0:00
Modifiers or how to cast enchantments in the Java world
Good galactic day, comrades! This is my first interplanetary manuscript, and since I am an engineer, the interpretation of some concepts can be done in an extraterrestrial language. In my opinion, Java is like an endless corridor with doors
Viacheslav
Random EN
28 February 2021 0:00
For and For-Each Loop: a tale of how I iterated, was iterated, but was not iterated
are one of the basic structures of programming languages. For example, on the Oracle website there is a section “ ”, in which loops have a separate lesson “ ”. Let's refresh the basics: The loop consists of three expressions (statements): (
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