JavaDocError: Utility classes should not have a public or default construct

Question

Hello all,
I am trying to comply with some check style errors that i am getting and i cannot seem to figure out what is going on. I have set all non-data members to private, except for call point public static void main(string[] args) and i am still getting this error. "Utility classes should not have a public or default constructor." I cannot figure out what is going on, any help would be greatly welcomed. My code is posted below.
public final class Main
     * Constant Data Member: RECTANGLE
     * Purpose: contains the constant string representing a rectangle.
     * @deprecated RECTANGLE Representitive string value for a rectangle.
    public static final String RECTANGLE = "rectangle";
     * Constant Data Member: TRIANGLE
     * Purpose: contains the constant string representing a triangle.
     * @deprecated TRIANGLE Representitive string value for a triangle.
    public static final String TRIANGLE = "triangle";
     * Constant Data Member: REGEX_NUMBER_TEST
     * Purpose: contains the constant for numerical test within regex method.
     * @deprecated REGEX_NUMBER_TEST regex string for digit comparison.
    public static final String REGEX_NUMBER_TEST = "^[0-9]+$";
     * Constant Data Member: MAX_ARGUMENTS_RECTANGLE
     * Purpose: contains the constant for the maximum number of allowed
     *          arguments coming in from the command line.
     * @deprecated MAX_ARGUMENTS_RECTANGLE constant for rectangle argument.
     *                                      limit.
    public static final int MAX_ARGUMENTS_RECTANGLE = 3;
     * Constant Data Member: MAX_ARGUMENTS_TRIANGLE
     * Purpose: contains the constant for the maximum number of allowed
     *          arguments coming in from the command line, in the case of a
     *          triangle object.
     * @deprecated MAX_ARGUMENTS_TRIANGLE constant for triangle argument limit.
    public static final int MAX_ARGUMENTS_TRIANGLE = 2;
     * Method: main
     * Purpose: Is the execution point for the program. It is in charge of
     *          initiating validation and the creation and application of
     *          objects and their related draw methods.
     * @param args input from the user.
    public static void main(final String[] args)
        String objectType = null;
        int width = 0;
        int height = 0;
        if(args.length > MAX_ARGUMENTS_RECTANGLE || args.length <
            MAX_ARGUMENTS_TRIANGLE || (args.length == MAX_ARGUMENTS_TRIANGLE &&
            !isTriangle(args[0])))
             // fails
            outputErrorMessage();
        else
            if ((isTriangle(args[0]) && args.length > MAX_ARGUMENTS_TRIANGLE) ||
                (!isTriangle(args[0]) && args.length > MAX_ARGUMENTS_RECTANGLE))
                // fails becuase triangle should only have one argument
                outputErrorMessage();
            else
                // passes and proceed
                objectType = args[0];
                if (validNumber(args[1]))
                    width = Integer.parseInt(args[1]);
                    if(width == 0)
                        outputErrorMessage();
                    else
....

Answer 1

Add a private constructor.
private Main() {  }
...This way it will be not possible to create an instance because it is not needed to use its static members or methods.
ref : [http://www.javapractices.com/topic/TopicAction.do?Id=40]
Bye.