Small noobie documentation question

For something like...
public static void main(String[] args)
        Scanner in = new Scanner(System.in);
        System.out.println("PLEASE USE NUMBERS ONLY!!");
        System.out.print("Enter the first digit: ");
        double aFirst = in.nextDouble();do I have to put
* (explination)
Do I have to put anything for the @ part? Like @param or something like that?
I know this question might not make sense... but I don't know how to explain it correctly.

max_wallace wrote:
If you are just talking about a block quote in the beginning of your program, you don't have to, but usually people put the @ sign in front of the authors name and the name of the program. But, its all up to you whether you use, it wont effect your program.No, im talking about how (example)
     * Computes the sum of the two digits
     * @return the value of the sum
    public double getSum()
        return sum;
    }theres a documentation because there's a @return
but for the System.out.println, is there one where i have to do @ (something...)

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