Say goodbye to the public static void main method in Java 21 with the unnamed classes and instance main methods preview features.

Learn seven advanced techniques for working with fields and methods in Java, including recursion, method call chaining, pass-by-value arguments, and rules for calling methods ...

Enclosure and access rules Although it is enclosed, a static member class cannot access the enclosing class’s instance fields and invoke its instance methods.

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