Page 71 | Java Blog - Java News and Learning posts on CodeGym

CodeGym Java Developer
20 July 2018 7:20
Old Level 04 Old Level 04
20.07.2018
2687views
0comments
1
CodeGym Java Developer
20 July 2018 7:20
Old Level 03 Old Level 03
20.07.2018
2507views
0comments
1
Volodymyr Portianko Java Arrays
19 July 2018 13:26
Something about arrays Hi! Previously in your training, we've worked with single objects (and primitive types). But what if we need to work with a whole group of objects instead of just one? For example, say we want to create a list of birthdays of all employees at our company. We'll benefit from a special data structure called an array ...
19.07.2018
23398views
29comments
252
Milan Vucic Core Java
19 July 2018 12:22
More about the garbage collector Hi! In the last lesson, we first became acquainted with Java's built-in garbage collector and got a rough idea of how it works. It works in the background while your program is running, collecting unnecessary objects that will be deleted later. Thus, it frees up memory that can be used to create new objects in the future ...
19.07.2018
33005views
84comments
437
John Selawsky Java Objects
19 July 2018 12:04
Object lifecycle Hi! I think you wouldn't be very surprised if I told you that your computer has a limited amount of memory :) Even your hard drive (which is many, many times the size of RAM) can get chock full of your favorite games, TV shows, and other things. To prevent this from happening, you need to monitor the current state ...
19.07.2018
34236views
42comments
312
Vasyl Malik Statements in Java
19 July 2018 11:25
Java Ternary operator Hi! Today's lesson won't be very long, but it will definitely be useful :) We're going to talk about the so-called ternary operator. Ternary means "composed of three parts". It is an alternative to the if-else control flow statement that you've already met. Let's give an example. Suppose someone decided...
19.07.2018
25364views
25comments
342
Volodymyr Portianko Inheritance in Java
19 July 2018 9:01
Base class constructors Hi! Last time we talked about constructors and learned a lot about them. Now we're going to talk about base class constructors. What's a base class?It has to do with the fact that in Java several different classes can have a common origin. This is called inheritance. Several child classes can have one common ...
19.07.2018
40119views
57comments
345
CodeGym Java Developer
19 July 2018 7:19
Old Level 02 Old Level 02
19.07.2018
3239views
0comments
1
Jesse Haniel Java Numbers
18 July 2018 10:14
Numeric operators in Java Hi! Today we'll consider a very important topic, namely, numeric operators in Java. In programming, numbers are everywhere. If you dig deep and remember high school, you may recall that a computer represents all information in a numerical format: combinations of zeros and ones, also known as binary code ...
18.07.2018
29440views
46comments
331
CodeGym Java Developer
18 July 2018 7:17
Old Level 01 Old Level 01
18.07.2018
4306views
0comments
1
CodeGym Java Developer
17 July 2018 7:14
Old Level 00 Old Level 00
17.07.2018
3454views
0comments
3
Aditi Nawghare Java IO & NIO
16 July 2018 15:23
Reading from the keyboard: "readers" The lessons and tasks in Level 3 taught you how to display stuff on the console, and, moving in the other direction, how to read data from the keyboard. How in the world does this work? In reality, programs are rarely entirely independent. They communicate with other programs, systems, the Internet, etc ...
16.07.2018
50152views
130comments
607