Скачать или смотреть Java’s Hidden Magic: How Instance Main Works Without a Class (JEP 512) | JAVA-25 | SDLC Pro

In this video, I explain how compact source files work in Java (JEP 512) and how the instance main method is invoked even when we don’t explicitly define a class.

Key points discussed:

1. We don’t need to define a class explicitly, because the Java compiler implicitly creates one, and its name is derived from the source file.
2. Even though we cannot define static blocks or constructors explicitly in a compact source file, the compiler defines them implicitly.
3. We cannot create an instance of the compact source file within its own methods.
4. After compilation, the compact source file generates a bytecode (.class file), and we can create an instance of that class in another file if it exists in the same application.

This video breaks down how compact source files work internally and clears up the confusion about object creation and the instance main method.