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

Get a deep dive into using method references in your Java programs, including stream operations, event listeners, and constructors and factories.

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

In the previous example: Public – Means that the method is accessible to other classes outside of this one Static – Means that the method belongs to the class and not the instance of the class ...

The reason why global constants in Java use the static and final keywords is because final ensures a variable cannot change, while static ensures only one copy of the constant variable is placed in ...