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.

It’s inappropriate to use an assertion to validate an argument in this public method. An assertion is intended to detect errors in programming logic and not to safeguard a method from erroneous ...

A public method should never be called by another public method within the same class hierarchy. It should only be called by other classes via the classes' public interface. Class calls might not be ...

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

Developers who create a runnable Java class, be it for a ‘Hello World’ demonstration or to kick off a fully featured enterprise application, will enjoy the following technical benefits when using ...

We discuss how to work with directories, sub-directories, and traverse them using Java and the DirectoryStream method. Learn more.