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

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

Use Java assertions to test your assumptions about program correctness and check them in your code.

Using generics results in more robust code and avoids ClassCastExceptions in your Java programs. This in-depth tutorial introduces you to generics and their types and methods.

Use Java method modifiers to avoid public method antipattern Follow best practices for Java method design, and don't allow one public class to call another. If you skipped this step, be prepared to ...

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.