Java gets the start and end times of the day, this week, this month, the quarter, the year, etc.

1. Code

Package Com.zhaochao.utils;import Java.text.simpledateformat;import Java.util.calendar;import java.util.Date; public class Datauill {public static void main (string[] args) {//TODO auto-generated method StubSystem.out.println ("24 Point of the day Time: "+ gettimesnight (). toLocaleString ()); System.out.println ("Current time:" + new Date (). toLocaleString ()); System.out.println ("0 Hours of the day:" + gettimesmorning (). toLocaleString ()); SYSTEM.OUT.PRINTLN ("Yesterday 0 Hours:" + getyesterdaymorning (). toLocaleString ()); SYSTEM.OUT.PRINTLN ("Nearly 7 days time:" + Getweekfromnow (). toLocaleString ()); SYSTEM.OUT.PRINTLN ("This week Monday 0 o'clock Time:" + gettimesweekmorning (). toLocaleString ()); SYSTEM.OUT.PRINTLN ("This week Sunday 24 o'clock Time:" + gettimesweeknight (). toLocaleString ()); System.out.println ("At the beginning of this month 0 hours:" + gettimesmonthmorning (). toLocaleString ()); System.out.println ("Not 24 points this month:" + gettimesmonthnight (). toLocaleString ()); System.out.println ("0 hours at the beginning of the month:" + getlastmonthstartmorning (). toLocaleString ()); System.out.println ("Time to start this quarter:" + getcurrentquarterstarttime (). toLocaleString ()); System.out.println ("The quarter end point time: "+ getcurrentquarterendtime (). toLocaleString ()); System.out.println ("Starting point of the year:" + Getcurrentyearstarttime (). toLocaleString ()); SYSTEM.OUT.PRINTLN ("Year end point time:" + getcurrentyearendtime (). toLocaleString ()); System.out.println ("Last year start point time:" + getlastyearstarttime (). toLocaleString ());} Get the day 0 point time public static date gettimesmorning () {Calendar cal = Calendar.getinstance (); Cal.set (calendar.hour_of_day, 0) ; Cal.set (Calendar.second, 0); Cal.set (Calendar.minute, 0); Cal.set (Calendar.millisecond, 0); return cal.gettime ();} Get yesterday 0 point time public static Date getyesterdaymorning () {Calendar cal = Calendar.getinstance (); Cal.settimeinmillis ( Gettimesmorning (). GetTime () -3600*24*1000); return Cal.gettime ();} Get the same day nearly 7 days public static date Getweekfromnow () {Calendar cal = Calendar.getinstance (); Cal.settimeinmillis ( Gettimesmorning (). GetTime () -3600*24*1000*7); return Cal.gettime ();} Get the day 24 point time public static date Gettimesnight () {Calendar cal = Calendar.getinstance (); Cal.set (Calendar.hour_of_day, 24) ; Cal.set (CALENDAR.SEcond, 0); Cal.set (Calendar.minute, 0); Cal.set (Calendar.millisecond, 0); return cal.gettime ();} Get this Monday 0 o'clock time public static Date gettimesweekmorning () {Calendar cal = Calendar.getinstance (); Cal.set (Cal.get ( Calendar.year), Cal.get (Calendar.monday), Cal.get (Calendar.day_of_month), 0, 0, 0); Cal.set (Calendar.day_of_week, Calendar.monday); return Cal.gettime ();} Get this Sunday 24 o'clock time public static Date Gettimesweeknight () {Calendar cal = Calendar.getinstance (); Cal.settime ( Gettimesweekmorning ()); Cal.add (Calendar.day_of_week, 7); return Cal.gettime ();} Get the first day of the month 0 o'clock time public static Date gettimesmonthmorning () {Calendar cal = Calendar.getinstance (); Cal.set (Cal.get ( Calendar.year), Cal.get (Calendar.monday), Cal.get (Calendar.day_of_month), 0, 0, 0); Cal.set (Calendar.day_of_month, Cal.getactualminimum (Calendar.day_of_month)); return Cal.gettime ();} Get the last day of the month 24 point time public static date Gettimesmonthnight () {Calendar cal = Calendar.getinstance (); Cal.set (Cal.get ( Calendar.year), Cal.get (Calendar.monday), Cal.get (Calendar.day_Of_month), 0, 0, 0); Cal.set (Calendar.day_of_month, Cal.getactualmaximum (Calendar.day_of_month)); Cal.set ( Calendar.hour_of_day); return Cal.gettime ();} public static Date getlastmonthstartmorning () {Calendar cal = Calendar.getinstance (); Cal.settime (gettimesmonthmorning ()); Cal.add (Calendar.month,-1); return Cal.gettime ();} public static Date Getcurrentquarterstarttime () {Calendar c = calendar.getinstance (); int currentmonth = C.get ( Calendar.month) + 1; SimpleDateFormat longsdf = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss"); SimpleDateFormat shortsdf = new SimpleDateFormat ("YYYY-MM-DD");D ate now = null;try {if (currentmonth >= 1 && cu Rrentmonth <= 3) c.set (calendar.month, 0); else if (currentmonth >= 4 && currentmonth <= 6) c.set (Calendar. MONTH, 3), else if (currentmonth >= 7 && currentmonth <= 9) c.set (Calendar.month, 4); else if (currentmonth ; = && Currentmonth <=) c.set (Calendar.month, 9); C.set (calendar.date, 1); now = Longsdf.parse (shoRtsdf.format (C.gettime ()) + "00:00:00"); catch (Exception e) {e.printstacktrace ();} return now;} /** * The end time of the current quarter. That is 2012-03-31 23:59:59 * * @return */public static Date getcurrentquarterendtime () {Calendar cal = Calendar.getinstance (); CA L.settime (Getcurrentquarterstarttime ()); Cal.add (Calendar.month, 3); return Cal.gettime ();} public static Date Getcurrentyearstarttime () {Calendar cal = Calendar.getinstance (); Cal.set (Cal.get (calendar.year), Cal.get (Calendar.monday), Cal.get (Calendar.day_of_month), 0, 0, 0); Cal.set (Calendar.day_of_month, Cal.getactualminimum (Calendar.year)); return Cal.gettime ();} public static Date Getcurrentyearendtime () {Calendar cal = Calendar.getinstance (); Cal.settime (getcurrentyearstarttime ()); Cal.add (calendar.year, 1); return Cal.gettime ();} public static Date Getlastyearstarttime () {Calendar cal = Calendar.getinstance (); Cal.settime (Getcurrentyearstarttime ( ); Cal.add (Calendar.year,-1); return Cal.gettime ();}}

2. Results

Day 24 time: 2015-1-18-0:00:00 Current time: 2015-1-17 10:50:57 Day 0 point time: 2015-1-17 0:00:00 yesterday 0 point time: 2015-1-16 0:00:00 nearly 7 days time: 2015-1-10 0:00:00 this week Monday 0 o'clock time: 2015-1-12 0:00:00 this week Sunday 24 o'clock time: 2015-1-19 0:00:00 early this month 0 point time: 2015-1-1 0:00:00 this month not 24 point time: 2015-2-1 0:00:00 early 0:2014-12-1 0:00:00 the beginning of the season: 2015-1-1 0:00:00 this quarter end point time: 2015-4-1 0:00:00 this year start point time: 2015-1-1 0:00:00 year end point time: 2016-1-1 0:00:00 last year start point time: 2014-1-1 0:00:00

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Java gets the start and end times of the day, this week, this month, the quarter, the year, etc.