java打印一年中所有日期

public class Main {
    
    public static void main(String args[]) {
      //请注意月份是从0-11,天数是1， 2013-1-1 至 2013-12-31
        Calendar start = Calendar.getInstance();
        start.set(2013, 0, 1); //2013-1-1 开始
        Calendar end = Calendar.getInstance();
        end.set(2014, 0, 0); // 2014--0-0结束，2014-1-1不算
        
        int sumSunday = 0;
        int sumSat = 0;
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
        
        while(start.compareTo(end) <= 0) {
            int w = start.get(Calendar.DAY_OF_WEEK);
            if(w == Calendar.SUNDAY)
                sumSunday ++;
            if(w == Calendar.SATURDAY)
                sumSunday ++;
            //打印每天
            System.out.println(format.format(start.getTime()));
            //循环，每次天数加1
            start.set(Calendar.DATE, start.get(Calendar.DATE) + 1);
        }
        System.out.println("星期天总数为:" + sumSunday);
        System.out.println("星期六总数为:" + sumSunday);
    }
}