Java Classes

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Jesse Haniel Java Classes
5 January 2025 11:15
Java Constructors Hi! Today we'll consider a very important topic that concerns our objects. Without exaggeration, we can say you'll use this topic in real life every day! We're talk about constructors. This may be the first time you're hearing this term, but you've actually already used constructors. You just didn't realize it ...
05.01.2025
34825views
85comments
474
Aditi Nawghare Java Classes
9 January 2023 11:44
Java Classes and Objects Hi! Today we will talk about classes in Java. You could say that classes form the cornerstone of Java programming. When you become a programmer, nearly your entire job will be writing your own classes that have various functions. Let's ...
09.01.2023
66756views
450comments
379
Milan Vucic Java Classes
26 July 2022 11:50
Java Scanner Class Hi! Our lesson today will be special! Previously, the process of completing tasks and writing programs was simple: we write some code, run the main() method, the program does what is required, and we're done. But now everything will change! Today we'll learn how to really interact with the program...
26.07.2022
58141views
72comments
360
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...
15.07.2022
14168views
8comments
126
Vasyl Malik Java Classes
17 March 2019 8:29
Specific examples of abstract classes in Java Hi! In past lessons, we met interfaces and figured out what they're for. Today's topic will echo the previous one. Let's talk about abstract classes in Java. You probably remember what 'abstraction' is — we've already gone over it. :) If you forgot, fear not. Remember: it's a principle of OOP...
17.03.2019
29330views
18comments
114
John Selawsky Java Classes
26 March 2020 6:55
Anonymous classes Hi! In today's lesson, we'll continue to examine the topic of nested classes. Now it's time for the last group: anonymous inner classes. Like the local classes that we talked about in the last lesson, anonymous classes are a kind of inner class... They also have several similarities and differences...
26.03.2020
5179views
3comments
44
Alex Vypirailenko Java Classes
24 March 2020 16:45
Enum. Practical examples. Adding constructors and methods Hi! Today we'll talk about one of Java's special data types: Enum (short for "enumeration"). What makes it special? Let's imagine what we need to implement "months" in a program. Doesn't seem problematic, right? We just need to determine what properties that any month has. Perhaps we first need...
24.03.2020
5755views
8comments
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John Selawsky Java Classes
26 March 2020 7:43
Nested inner classes Hi! Today we'll take up an important topic: how nested classes work in Java. These internal classes are called nested. They are divided into 2 types: Non-static nested classes (these are also called inner classes), Static nested classes. In turn, inner classes have two distinct subcategories...
26.03.2020
6030views
3comments
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John Selawsky Java Classes
16 January 2020 9:41
Static nested classes Hi! We continue to explore the topic of nested classes in Java. In the last exercise, we spoke about non-static nested classes, which are also known as inner classes. Today we move on to another group of classes. We'll consider static nested classes. How are they different from other classes?
16.01.2020
4251views
1comment
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Artem Divertitto Java Classes
8 January 2025 16:19
Java Comparator and Comparable Hi! Today we're going to talk about comparing objects. Hmm... But haven't we already talked this topic more than once? :/ We know how the == operator works, as well as the equals() and hashCode() methods. Comparison is a little different. Previously, we most likely meant "checking objects for equality"...
08.01.2025
6784views
7comments
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Oleksandr Miadelets Java Classes
26 March 2020 9:28
Inner classes in a local method Hi! Let's talk about another kind of nested classes. I'm talking about local classes (method-local inner classes). Before diving in, we must first remember their place in the structure of nested classes. From our diagram, we can see that local classes are a subspecies of inner classes...
26.03.2020
3815views
3comments
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Jesse Haniel Java Classes
25 August 2022 11:15
Dynamic Proxies in Java Hi! Today we will consider a rather important and interesting topic: the creation of dynamic proxy classes in Java. It's not very simple, so we'll try to figure it out using examples :) So, the most important question: what are dynamic proxies and what are they for?
25.08.2022
7802views
3comments
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