获取一周的第几天

注：周天是第一天

import java.util.Calendar;
public  class WhichDayofCalendar{
    public static void main(String[] args) {
        Calendar calendar = Calendar.getInstance();
        System.out.println(calendar);
        int i = calendar.get(Calendar.DAY_OF_WEEK);
        System.out.println("今天是这周的第" + i + "天");
    }
}