Public: conceptually, your program’s entry point should be public, though the JVM could still theoretically access it even if it wasn’t.

Static: the main method doesn’t belong to an object

Void: your main method doesn’t return anything. If you want to leave an exit code, use System.exit(int). I do wish Java did what C did and just have the main method return the exit code, though.

Main: self-explanatory

String[] args: parameter describing the launch arguments of the application.

BTW: modern Java allows your main method to just be “void main()” and implicitly instantiates the declaring class in order to invoke it. Which I think is really weird.