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

The entry point of a standalone Java application is the main method or function. In the age of Servlets and JSPs, Java’s main function took a backseat to these technologies that were initialized with ...

However, they must contain a main method that can be launched, a requirement enforced by the Java compiler. This new feature allows developers to write programs without explicit class declarations.

这些功能以前被称为“隐式声明类和实例主方法（Implicitly Declared Classes and Instance Main Methods）”，现在该特性已在 JDK 25 中最终确定。

In this blog post, I look at the concept of Java synthetic methods . The post summarizes what a Java synthetic method is, how one can be created and identified, and the implications of Java ...