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

JEP 512 enhances Java with Compact Source Files and Instance Main Methods in JDK 25, easing the learning curve for beginners. Key features include simplified syntax, automatic imports, and a new ...

Compact source files and instance main methods evolves the Java language so beginners can write their first programs without needing to understand language features designed for large programs.