This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

Since Java 21, wrapper classes have played an increasingly sophisticated role in Java’s type system. Here’s everything you ...

Difference between static and final in Java. While static variables use memory very efficiently, a static variable is not constant. It can be changed at any time. Imagine that you want a constant that ...

When to use abstract classes in Java It’s a good idea to use an abstract class when you need to implement mutable state. As an example, the Java Collections Framework includes the AbstractList ...

Sealed classes make Java an even more powerful and expressive language and set the stage for even more sophisticated techniques such as pattern matching, which we'll explore in a subsequent article. A ...