Java allows several valid variations of the main method syntax for beginners to understand.
Valid main method syntaxes in Java include using standard array syntax, old-school array syntax, varargs, and custom parameter names.
Invalid main method syntaxes include missing static or public, using wrong parameter types, as the JVM specifically expects public static void main(String[] args).
While overloading the main method is possible, only the correct one (String[] args) will run by default in Java.