How Java gets the start and end times of the day

public static void Main (string[] args) {Calendar C1 = new GregorianCalendar (); C1.set (calendar.hour_of_day, 0); C1.set ( Calendar.minute, 0); C1.set (Calendar.second, 0); System.out.println (C1.gettime (). toLocaleString ()); Calendar C2 = new GregorianCalendar (), C2.set (Calendar.hour_of_day, 23°c); C2.set (Calendar.minute); C2.set ( Calendar.second, 59); System.out.println (C2.gettime (). toLocaleString ());}

Slightly modified under

/** * @param args */public static void main (string[] args) {Calendar calendar = calendar.getinstance (); Calendar.settime (NE W Date ()); Calendar.set (calendar.hour_of_day, 0); Calendar.set (Calendar.minute, 0); Calendar.set (Calendar.second, 0) ;D ate start = Calendar.gettime (); Calendar.add (Calendar.day_of_month, 1); Calendar.add (Calendar.second,-1);D ate end = Calendar.gettime ();    System.out.println (start);    SYSTEM.OUT.PRINTLN (end);}

or more simple.

/** * @param args * @throws parseexception  */public static void Main (string[] args) throws ParseException {Calendar CA Lendar = Calendar.getinstance (); Calendar.settime (new Date ()); Calendar.set (calendar.hour_of_day, 0); Calendar.set ( Calendar.minute, 0); Calendar.set (Calendar.second, 0);D ate start = Calendar.gettime (); Calendar.add (calendar.day_of_ MONTH, 1); Calendar.add (Calendar.second,-1);D ate end = Calendar.gettime ();    System.out.println (start);    SYSTEM.OUT.PRINTLN (end);        /* Other    simpledateformat/* = Formater = new SimpleDateFormat ("Yyyy/mm/dd");    SimpleDateFormat formater2 = new SimpleDateFormat ("Yyyy/mm/dd HH:mm:ss");        Start = Formater2.parse (Formater.format (New Date ()) + "00:00:00");    End = Formater2.parse (Formater.format (New Date ()) + "23:59:59");        System.out.println (start);    SYSTEM.OUT.PRINTLN (end);}

Source:http://bbs.csdn.net/topics/390562030?page=1

How Java Gets the start and end times of the day