Articles

Java is an object-oriented language. This means that you need to write Java programs using an object-oriented paradigm. And this paradigm entails using objects and classes in your programs. Let's try using examples to understand what classes and objects are, and how to apply basic OOP principles...

Sorting is one of the basic operations that we perform on objects. Even in childhood, children are taught to sort as they develop their thinking skills. Computers and software are no exception. There are a huge variety of algorithms. I suggest that you check out what they are and how they work...

Discovering how to program Java is equally tempting for both beginners and experienced programmers. As a trendy programming language, it gives you plenty of room to utilize it for various applications. Java is an object-oriented and class-based programming language. It's main feature is JVM...

I think everyone has heard the saying "Measure twice, cut once". It's true advice in programming. It's always better to think about the implementation before you spend any time carrying it out. During implementation, you often need to create classes and think up how they will interact...

You've decided to learn Java. It's a promising and time-tested programming language with lots of opportunities, so it's a really good choice nowadays. But where to start? How to learn it efficiently? Here are some Java coding for beginners tips that will help you along the way...

So you’ve decided to find the best way to learn Java from scratch, and become a master. You’ve made the right choice: Java is a beginner-friendly programming language that you can learn on your own. But, first, you need to set your own goals and develop a learning plan...

Generics are Java's special mechanism for implementing generic programming — a way to describe data and algorithms that lets you work with different datatypes without changing the description of the algorithms. The Oracle website has a separate tutorial dedicated to generics: "Lesson: Generics"...

Hi! Have you ever wondered why Java is designed exactly as it is? I mean, you declare classes and create objects based on classes, classes have methods, etc. But why is the language structured so that programs consist of classes and objects, and not something else? Why was the concept of an "object" invented...

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...

Are you puzzled how to start learning Java from scratch and don’t know where to start? A good beginning point is setting your goals and getting into coding right away. Along with that, you should consider some of the common mistakes Java...

The lazy aren't the only ones to write about Comparators and comparisons in Java. I'm not lazy, so please love and gripe about yet another explanation. I hope it will not be superfluous. And yes, this article is the answer to the question: "Can you write a comparator from memory?" I hope everyone will be able to write...

Java is not just a programming language. It's an entire software platform with extensive capabilities. The main components of the platform are: basic tools for writing and running Java programs; libraries and classes (the core of the language). They provide Java's basic programming capabilities: exception...