计算500天以后的是星期几，是当月的第几个星期

Question

如题，帮忙写个，发上来，谢谢

Answer 1

    Calendar calendar = Calendar.getInstance();
    calendar.add(Calendar.DAY_OF_YEAR, 500);
    System.out.println(calendar.getTime());
    switch (calendar.get(Calendar.DAY_OF_WEEK)) {
    case Calendar.SUNDAY:
      System.out.println("SUNDAY");
      break;
    case Calendar.MONDAY:
      System.out.println("MONDAY");
      ...
    default:
      break;
    }
    System.out.println(calendar.get(Calendar.DAY_OF_WEEK));
    System.out.println(calendar.get(Calendar.WEEK_OF_MONTH));

Answer 2

String[] dayStrs = { "","SUNDAY","MONDAY", "TUESDAY", "WEDNESDAY", "THURSDAY",
"FRIDAY", "SATURDAY",};
System.out.println(dayStrs[calendar.get(Calendar.DAY_OF_WEEK)]);