Page 70 | Java Blog - Java News and Learning posts on CodeGym

Pavlo Plynko Multithreading in Java
22 March 2019 12:00
Multithreading: What the methods of the Thread class do Hi! Today we'll continue to talk about multithreading. Let's examine the Thread class and what a few of its methods do. When we studied class methods previously, we usually just wrote this: -> . This won't work with Thread's methods :) ...
22.03.2019
11065views
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Pavlo Plynko Java Objects
21 March 2019 15:33
Sequence of actions during object creation Hi! Today's lesson will be quite... uh... multifaceted :) in the sense that we will cover a wide range of topics, but they will all relate to the object creation process. We will analyze it from beginning to end: how constructors are called, how and in what order fields (including static fields) are initialized, etc...
21.03.2019
8043views
16comments
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John Selawsky Inheritance in Java
20 March 2019 12:15
Widening and narrowing of reference types Hi! In a past lesson, we discussed casting primitive types. Let's briefly recall what was discussed. We imagined primitive types (in this case, numeric types) as nesting dolls that vary in size according to the amount of memory they occupy...
20.03.2019
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Andrew Random
19 March 2019 21:47
Next step, what do you suggest?While CodeGym is busy creating the next big content release, what would you suggest as a next step? My goal is to learn enough Java that I can start working as a Jr. Developer. I've been at this for almost a year now, going through online "Learn Java" programs, reading through several of the top recommended books...
19.03.2019
3066views
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Aditi Nawghare Java Interfaces
18 March 2019 9:53
The difference between abstract classes and interfaces Hi! In this lesson, we'll talk about how abstract classes differ from interfaces and consider some examples with common abstract classes. We've devoted a separate lesson to the differences between an abstract class and an interface, because this topic is very important...
18.03.2019
23439views
46comments
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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
29428views
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Volodymyr Portianko Java Interfaces
16 March 2019 7:58
Default methods in interfaces Every new version of Java differs from those that came before. Here's an example of changes in material that we've covered: before Java 5, the language didn't have enums. Similarly, Java 8 differs markedly from Java 7. Most of our lessons were written for the 7th version of the language...
16.03.2019
11169views
12comments
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Vasyl Malik OOP Java
8 March 2019 15:16
Relationships between classes. Inheritance, composition, and aggregation Hi! Today we'll take a closer look at one principle of Object Oriented Programming (OOP): Inheritance. We'll also study other types of relationships between classes: composition and aggregation ...
08.03.2019
27037views
22comments
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fahad khan Random
8 March 2019 8:23
just came back !!!!I have came back to the gym after 4 months or so. Feels good.thanks codegym!!! How much time should i spend every day to complete the course in 6 months?
08.03.2019
2888views
2comments
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Milan Vucic Java Developer
5 February 2019 11:34
Top 21 Java interview questions There are myriads of Java interview questions and we can’t collect all of them in one article. However here you can find some very common Java interview questions, according to HR-managers of IT companies. “Disassemble” public static void main(String args[])...
05.02.2019
20562views
10comments
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Oleksandr Miadelets Java Developer
23 January 2019 12:56
Java For Dummies by Barry Burd - Is This Book Worth Your Attention?We’re so used to learn everything from books, but does it work for mastering the code? Let’s picture that you’re totally new to programming and have a vague image of what exactly you should know and do to find a real job...
23.01.2019
10700views
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Mohammed Amine EL AMRANI Random
6 January 2019 14:46
Help for path Java career path. If we know java core whats the most excellent path to follow ? J2e / big data / mobile android ... or something else ? Thx in advance ...
06.01.2019
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