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

Here's how to make classes, fields, methods, constructors, and objects work together in your Java programs.

Sealed classes, proposed in JEP 409 and available since Java 17, let developers limit and control how deeply a component's type hierarchy can extend. With sealed classes, a developer can essentially ...

This post shows readers how to create an array in Java. Including: Array Lists, multidimensional arrays, maps, and more.

Typesafe enums offer a better alternative to Java's traditional enumerated types. Here's how to use typesafe enums correctly in your Java code.

The pattern matching feature in Java lets app developers handle complex data structures such as abstract layers and class hierarchies. Here's how it works.