Tiamti

Poniżej jest kod mojego programu który powinien wybisać wszystkie dni aktualnego miesiąca i aktualny dzień oznaczyc gwiazdką lecz pojawiły mi się następujące problemy i nie wiem jak je rozwiązać ;/

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
                The method getShortWeekDays() is undefined for the type DateFormatSymbols
                weekDayNames cannot be resolved to a variable

import java.text.DateFormatSymbols;
import java.util.*;

public class EmloyeeTest
{
    public static void main(String[] args)
    {
        GregorianCalendar d = new GregorianCalendar();
        int today = d.get(Calendar.DAY_OF_MONTH);
        int month = d.get(Calendar.MONTH);

        d.set(Calendar.DAY_OF_MONTH, 1);

        int weekday = d.get(Calendar.DAY_OF_WEEK);

        int firstDayOfWeek = d.getFirstDayOfWeek();

        int indent = 0;
        while(weekday != firstDayOfWeek)
        {
            indent++;
            d.add(Calendar.DAY_OF_MONTH, -1);
            weekday = d.get(Calendar.DAY_OF_WEEK);
        }

        String[] weekdayNames = new DateFormatSymbols().getShortWeekDays();
        do
        {
            System.out.printf("%4s", weekDayNames[weekday]);
            d.add(Calendar.DAY_OF_MONTH, 1);
            weekday = d.get(Calendar.DAY_OF_WEEK);
        }
        while(weekday != firstDayOfWeek);
        System.out.println();

        for(int i = 1; i <= indent; i++ )
            System.out.print("    ");

        d.set(Calendar.DAY_OF_MONTH, 1);
        do
        {
            int day = d.get(Calendar.DAY_OF_MONTH);
            System.out.printf("%3d", day);

            if(day == today ) System.out.print("*");
            else System.out.print("  ");

            d.add(Calendar.DAY_OF_MONTH, 1);
            weekday = d.get(Calendar.DAY_OF_WEEK);

            if(weekday == firstDayOfWeek) System.out.println();

        }
        while(d.get(Calendar.MONTH) == month);

        if(weekday != firstDayOfWeek) System.out.println();

    }

}