"Java" Dateutil (1)

Tag:ring   mat    Extract    cal   ddd    led   pattern   stat   import   

Import Java.text.parseexception;import java.text.simpledateformat;import Java.util.calendar;import java.util.Date     The/** * Date Tool class uses the default "YYYY-MM-DD HH:MM:SS" format Date * */public Final class Dateutils {/** * English shorthand (default) such as: 2010-12-01 */    public static String Format_short = "YYYY-MM-DD";    /** * English full name: 2010-12-01 23:15:06 */public static String Format_long = "Yyyy-mm-dd HH:mm:ss"; /** * Accurate to milliseconds full time such as: Yyyy-mm-dd HH:mm:ss. S */public static String Format_full = "Yyyy-mm-dd HH:mm:ss.    S ";    /** * Chinese Shorthand: December 01, 2010 */public static String FORMAT_SHORT_CN = "yyyy mm month DD";    /** * Chinese full name: December 01, 2010 23:15 06 seconds */public static String FORMAT_LONG_CN = "yyyy mm month DD day hh" mm min SS second ";    /** * Accurate to milliseconds full Chinese time */public static String FORMAT_FULL_CN = "yyyy mm month DD day hh" mm min ss sec sss msec ";    /** * Gets the default date pattern */public static String Getdatepattern () {return format_long;  }/** * Returns the current date according to the preset format * * @return * *  public static String Getnow () {return format (new Date ()); /** * Returns the current date according to the user format * * @param format * @return */public static string Getnow (string format)    {return format (new Date (), format);        /** * format date with preset format * * @param date * @return */public static String format (date date) {    return format (date, Getdatepattern ()); /** * format date with user format * * @param date * Date * @param pattern * Date format * @        return */public static string format (date date, string pattern) {String returnvalue = "";            if (date! = null) {SimpleDateFormat df = new SimpleDateFormat (pattern);        returnvalue = Df.format (date);    } return (returnvalue);  /** * Extract string date using preset format * * @param strdate * Date String * @return */public static date Parse (String strdate) {return parse (strdate, Getdatepattern ());      /** * Extract string date using user format * * @param strdate * Date String * @param pattern * Date format * @return */public static Date parse (string strdate, String pattern) {SimpleDateFormat df = new Simpl        Edateformat (pattern);        try {return df.parse (strdate);            } catch (ParseException e) {e.printstacktrace ();        return null; }}/** * Add a few months to the date * * @param date * Date * @param n * Number of month to increase * @        return */public static date Addmonth (date date, int n) {Calendar cal = Calendar.getinstance ();        Cal.settime (date);        Cal.add (Calendar.month, N);    return Cal.gettime ();     /** * Add days to date * * @param date * Date * @param n * Number of days to increase * @return        */public static date Addday (date date, int n) {Calendar cal = Calendar.getinstance ();    Cal.settime (date);    Cal.add (calendar.date, N);    return Cal.gettime (); }/** * gets timestamp */public static String gettimestring () {SimpleDateFormat df = new SimpleDateFormat (FO        Rmat_full);        Calendar calendar = Calendar.getinstance ();    Return Df.format (Calendar.gettime ()); /** * Gets the date year * * @param date * Date * @return */public static String GetYear (Da    Te date) {return format (date). substring (0, 4); }/** * By default format string distance today * * @param date * Date String * @return */public static int        Countdays (String date) {Long T = calendar.getinstance (). GetTime (). GetTime ();        Calendar C = calendar.getinstance ();        C.settime (Parse (date));        Long T1 = C.gettime (). GetTime ();    return (int) (t/1000-t1/1000)/3600/24;     }/** * by user format string distance today * * @param date * Date String * @param format * Date formats  * @return * *  public static int Countdays (string date, string format) {Long T = calendar.getinstance (). GetTime (). GetTime ();        Calendar C = calendar.getinstance ();        C.settime (Parse (date, format));        Long T1 = C.gettime (). GetTime ();    return (int) (t/1000-t1/1000)/3600/24; }}

"Java" Dateutil (1)