The only legal entry point method that can be run from the command line is the "Public static void main (String[] args). The first option there would have been correct, but it has to be a public static void main and not private static void main.
The second and sixth options, which are "public static final main(String[] args)" and "Public static main(String[] args) respectively, are also not correct because there must be a void return type for the main() method. The third option, which is "public void main(String[] args)," is also not correct because the main() method has to be static.
The fourth option, which is "public static void test(String[] args)" is not correct also, simply because the main() method has to be named main. Moreover, Java is very case sensitive. Therefore, make sure you type in your entry correctly, such as "public static void main(String[] args).