- 20 July 2018 7:20
- 20 July 2018 7:20
- 19 July 2018 14:19Arrays class and its use Hello again! :) In the last lesson, we got to know such a data structure called an array. We learned how to create them and fill them with data. And we looked at how they're stored in memory. Today we'll look at some tasks and examples of working with arrays that you will often see in real work ...
- 19 July 2018 13:26Something about arraysHi! 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 July 2018 12:22More 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 July 2018 12:04Object 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 July 2018 11:25Ternary operatorHi! 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 July 2018 9:01Base 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 July 2018 7:19
- 18 July 2018 10:14Numeric operators in JavaHi! 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 July 2018 7:17
- 17 July 2018 7:14