Articles

How often have you had to dig into someone else's code? Instead of two hours, you may spend two days to simply understand the logic of what is happening. The funny thing is that for the person who wrote the code, everything is...

According to the world-famous American writer and software engineer Robert L. Glass, "The best programmers are up to 28 times better than the worst programmers". However, great...

Studying anything at home on your own is never easy for the obvious reason — there is no one around to watch over. No one except you, and let’s face it, most of us just can’t serve as a rigorous warden to thine own self...

Good day, everybody! Today we would like to talk to you about writing good code. Of course, not everyone wants to chew on books like Clean Code right away, since they contain copious amounts of information but not much is clear at first. And by the time you finish reading, you may kill all your desire to code...

Learning how to code might be slightly scary for newcomers. It’s not easy to stay cool and smash along millions of programmers with zero experience and an intangible idea of your goals and career. Would your education be intense? Yes! Would it be tough? Sometimes. Is it too late to try? Definitely, it is not...

If you need to get all the keys that your Map contains, you can use the really handy java.util.HashMap.keySet() method. In this article, we will explain how it works. As you know, the HashMap class implements the Map...

Any newbie who is willing to become a good programmer, most likely, googles three top things at first: Which programming language to begin with? How to learn? Where to learn?..

Java 8, as many of us know, introduced the Stream API. This is a very useful toolkit, but it has a drawback, it does not include Maps. However, Java 8 added several useful methods to the Map interface itself to reduce the amount of "bad" code...

Java just for fun? Why not?! No denying, the good post of a Java developer (and, accordingly, good money) can be a good motivation. But that’s not the only reason more...

Virtually nobody challenges the fact that Java is one of the most popular programming languages based on literally every major criterion. However, to avoid making claims without evidence, here is some basic information and statistics. Can Java really be called the most popular programming...

The lastIndexOf() method returns the position of the last occurrence of a specified character or a substring in a string. Imagine that you have some kind of long text, or rather a long line...

If you are a Java programming beginner, probably, it’s high time that you started working on some Java project! Here, at CodeGym, we believe in the fantastic effect of a practical-oriented approach as theoretical knowledge alone will never help you...