java獲取當前星期幾

        //獲取當前星期幾
        Calendar calendar;
        calendar = Calendar.getInstance();
        System.out.println(calendar);
        System.out.println("當前月份："+calendar.DAY_OF_MONTH);
        String week;
        week = calendar.get(calendar.DAY_OF_WEEK) - 1 + "";
        if ("0".equals(week)) {
            week = "7";
        }
        System.out.println("當前星期："+week);