获得本年结束时间，本月结束时间，本周结束时间，今日结束时间的时间戳的java代码

以下是获取本年结束时间，本月结束时间，本周结束时间，今日结束时间的时间戳的Java代码：

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

public class TimeStampExample{

    public static void main(String args[]){

        //获取本年结束时间
        Calendar calendar = Calendar.getInstance();
        calendar.set(Calendar.MONTH, 11); //12月份
        calendar.set(Calendar.DAY_OF_MONTH, 31); //31日
        Date yearEnd = calendar.getTime();
        long yearEndTimeStamp = yearEnd.getTime();
        System.out.println("本年结束时间戳：" + yearEndTimeStamp);

        //获取本月结束时间
        Calendar calendar2 = Calendar.getInstance();
        calendar2.set(Calendar.DAY_OF_MONTH, calendar2.getActualMaximum(Calendar.DAY_OF_MONTH)); //本月最后一天
        Date monthEnd = calendar2.getTime();
        long monthEndTimeStamp = monthEnd.getTime();
        System.out.println("本月结束时间戳：" + monthEndTimeStamp);

        //获取本周结束时间
        Calendar calendar3 = Calendar.getInstance();
        calendar3.set(Calendar.DAY_OF_WEEK, Calendar.SUNDAY); //本周第一天为周日
        calendar3.add(Calendar.DAY_OF_MONTH, 6); //本周最后一天为周六
        Date weekEnd = calendar3.getTime();
        long weekEndTimeStamp = weekEnd.getTime();
        System.out.println("本周结束时间戳：" + weekEndTimeStamp);

        //获取今日结束时间
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
        String today = dateFormat.format(new Date());
        String todayEndStr = today + " 23:59:59";
        SimpleDateFormat dateTimeFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            Date todayEnd = dateTimeFormat.parse(todayEndStr);
            long todayEndTimeStamp = todayEnd.getTime();
            System.out.println("今日结束时间戳：" + todayEndTimeStamp);
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

}