//获取当天
Calendar calendar = Calendar.getInstance();
int year = calendar.get(Calendar.YEAR);
int month = calendar.get(Calendar.MONTH) + 1; // 注意：月份是从0开始的
int day = calendar.get(Calendar.DAY_OF_MONTH);
//基姆拉尔森计算公式根据日期判断星期几
public String CalculateWeekDay(int y, int m, int d) {if(m < 1 || m >12){System.out.println("你输入的月份不再范围内，请重新输入！");}if (m == 1 || m == 2) {m += 12;y--;}String week = null;int iWeek = (d + 2 * m + 3 * (m + 1) / 5 + y + y / 4 - y / 100 + y / 400) % 7;switch (iWeek) {case 0:week = "星期一";break;case 1:week = "星期二";break;case 2:week = "星期三";break;case 3:week = "星期四";break;case 4:week = "星期五";break;case 5:week = "星期六";break;case 6:week = "星期日";break;default:break;}return week;
}// 获取未来一星期内的日期集合public static List<String> getNextSevenDays() {List<String> nextSevenDays = new ArrayList<>();Calendar calendar = Calendar.getInstance();SimpleDateFormat dateFormat = new SimpleDateFormat("MM.dd");for (int i = 0; i < 6; i++) {nextSevenDays.add(dateFormat.format(calendar.getTime()));calendar.add(Calendar.DATE, 1); // 增加一天}return nextSevenDays;
}
)
