In order to add such a feature, you need to understand how Java controls data. Developers use variables in Java to hold data, with all variables having a data type and a name.

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

This post explains how to call a method in Java. Learn how to define methods, call them from other classes, and pass arguments!

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

Learning Java can help aspiring developers understand the foundations of programming because of the language’s wide usage and functionality.

Sealed classes in Java let developers limit the creation and use of subclasses and preserve the class hierarchy. Here is how sealed classes in Java work.