Date plus minus



Package cn.com.css.misps.graph.util;

Import Java.text.SimpleDateFormat;
Import Java.util.Calendar;
Import Java.util.Date;
Import Java.util.regex.Matcher;
Import Java.util.regex.Pattern;

/**
* @brief Dateutil.java Date Tool class
* @attention
* @author coating rights
* @date 2013-10-13
* @note begin modify by null
*/
public class Dateutil {

 /**
  * \brief generated similar: 201310181533 time value
  *
  * @return
  * @attention
  * @author paint Rights
  * @date 2013-10-18
  * @note begin modify by NULL
  */
 public static Stri Ng Gettimenow () {
  //gets a calendar using the default time zone and locale
  calendar calendar = calendar.getinstance ();
  //
  string year = Calendar.get (calendar.year) + "";
  //month
  string month = ((Calendar.get (calendar.month) + 1) < 10)? "0"
    + (Calendar.get (calendar.month) + 1): ""
    + (Calendar.get ( Calendar.month) + 1);
  //today
  string day = (Calendar.get (calendar.day_of_month) < 10)? "0"
    + calendar.get (calendar.day_of_month): ""
    + Calendar.get (calendar.day_of_month);

Time, 24-hour system
String hour = (Calendar.get (calendar.hour_of_day) < 10)? "0"
+ Calendar.get (calendar.hour_of_day): ""
+ Calendar.get (calendar.hour_of_day);
Score of
String minute = (Calendar.get (Calendar.minute) < 10)? "0"
+ Calendar.get (Calendar.minute): ""
+ Calendar.get (calendar.minute);
Seconds, not for the time being
int seconds = Calendar.get (Calendar.second);
Return year + month + day + hour + minute;
}

/**
* \brief Gets the date of n days
*
* @param string
* @param string2
* @attention
* @author coating rights
* @date 2013-11-16
* @note begin modify by null
*/
public static string Handleadd (String str, Integer num) {
Get a default time zone and locale to get a calendar
Calendar calendar = Calendar.getinstance ();
String newstr = null;
if (Str.tolowercase (). StartsWith ("Y")) {
Newstr = (Calendar.get (calendar.year) + num) + "";
There are several y in the judging character, if there is only one, the last two bits are obtained, and if there are 4 bits, 4 bits are returned.
Return newstr.substring (Newstr.length ()-str.length ());
} else if (Str.startswith ("M")) {
Reset Month
Calendar.set (Calendar.month, Calendar.get (calendar.month) + num);
Otherwise, return directly
Return ((Calendar.get (calendar.month) + 1) < 10)? "0"
+ (Calendar.get (calendar.month) + 1): (Calendar
. Get (Calendar.month) + 1)
+ "";
} else if (Str.startswith ("D")) {
int monthNow1 = Calendar.get (calendar.month) + 1;//get month

Calendar.set (Calendar.day_of_month, Calendar.get (calendar.day_of_month) + num);
int monthNow2 = Calendar.get (calendar.month) + 1;//get month
String mouth = ((Calendar.get (calendar.month) + 1) < 10)? "0"
+ (Calendar.get (calendar.month) + 1) + "month": (Calendar
. Get (Calendar.month) + 1)
+ "Month";

Return (Calendar.get (Calendar.day_of_month) < 10)? Mouth + "0"
+ Calendar.get (calendar.day_of_month): Mouth
+ Calendar.get (calendar.day_of_month);
} else if (Str.startswith ("H")) {
Calendar.set (Calendar.hour_of_day, Calendar
. Get (Calendar.hour_of_day)
+ num);
Return (Calendar.get (Calendar.hour_of_day) < 10)? "0"
+ Calendar.get (calendar.hour_of_day): ""
+ Calendar.get (calendar.hour_of_day);
} else if (Str.startswith ("M")) {
Calendar.set (Calendar.minute, Calendar.get (calendar.minute) + num);
Return (Calendar.get (Calendar.minute) < 10)? "0"
+ Calendar.get (calendar.minute): Calendar
. Get (Calendar.minute)
+ "";
} else if (Str.startswith ("s")) {
Calendar.set (Calendar.second, Calendar.get (calendar.second) + num);
Return (Calendar.get (Calendar.second) < 10)? "0"
+ Calendar.get (calendar.second): Calendar
. Get (Calendar.second)
+ "";
} else {
Calendar.set (Calendar.millisecond, Calendar
. Get (Calendar.millisecond)
+ num);
Return Calendar.get (Calendar.millisecond) + "";
}
}

/**
* \brief Gets the date of n days
*
* @param string
* @param string2
* @attention
* @author coating rights
* @date 2013-11-16
* @note begin modify by null
*/
public static string Handleminus (String str, Integer num) {
Get a default time zone and locale to get a calendar
Calendar calendar = Calendar.getinstance ();
String newstr = null;
if (Str.tolowercase (). StartsWith ("Y")) {
Newstr = (Calendar.get (calendar.year)-num) + "";
There are several y in the judging character, if there is only one, the last two bits are obtained, and if there are 4 bits, 4 bits are returned.
Return newstr.substring (Newstr.length ()-str.length ());
} else if (Str.startswith ("M")) {
Reset Month
Calendar.set (Calendar.month, Calendar.get (calendar.month)-num);
Otherwise, return directly
Return ((Calendar.get (calendar.month) + 1) < 10)? "0"
+ (Calendar.get (calendar.month) + 1): (Calendar
. Get (Calendar.month) + 1)
+ "";
} else if (Str.startswith ("D")) {
Calendar.set (Calendar.day_of_month, Calendar
. Get (Calendar.day_of_month)
-num);
Return (Calendar.get (Calendar.day_of_month) < 10)? "0"
+ Calendar.get (calendar.day_of_month): Calendar
. Get (Calendar.day_of_month)
+ "";
} else if (Str.startswith ("H")) {
Calendar.set (Calendar.hour_of_day, Calendar
. Get (Calendar.hour_of_day)
-num);
Return (Calendar.get (Calendar.hour_of_day) < 10)? "0"
+ Calendar.get (calendar.hour_of_day): ""
+ Calendar.get (calendar.hour_of_day);
} else if (Str.startswith ("M")) {
Calendar.set (Calendar.minute, Calendar.get (calendar.minute)-num);
Return (Calendar.get (Calendar.minute) < 10)? "0"
+ Calendar.get (calendar.minute): Calendar
. Get (Calendar.minute)
+ "";
} else if (Str.startswith ("s")) {
Calendar.set (Calendar.second, Calendar.get (calendar.second)-num);
Return (Calendar.get (Calendar.second) < 10)? "0"
+ Calendar.get (calendar.second): Calendar
. Get (Calendar.second)
+ "";
} else {
Calendar.set (Calendar.millisecond, Calendar
. Get (Calendar.millisecond)
-num);
Return Calendar.get (Calendar.millisecond) + "";
}
}

/**
* \brief the current log output string in the specified format
*
* @param amask
* @return
* @attention This is just a conversion of the current log
* @author Toto
* @date 2013-11-15
* @note begin modify by null
*/
public static string Date2string (String amask) {
StringBuffer sb = new StringBuffer (amask);
if (Amask.contains ("[") && Amask.contains ("]")) {
Remove the string from the [] and replace it with the desired string.
Pattern pattern = Pattern.compile ("(\\[\\w*\\+{0,}\\-{0,}\\d{0,}\\)");
Get Matcher
Matcher Matcher = Pattern.matcher (sb.tostring ());

while (Matcher.find ()) {
String submask = matcher.group (0);
System.out.println ("Submask =" + Submask);

Then determine if there is a "+" sign in the string. If there is any further processing
if (Submask.contains ("+")) {
String Tempsubmask = Submask.replace ("[", "" "). Replace ("] ",
"");
string[] temp = tempsubmask.split ("\\+");
String replacedstring = Handleadd (temp[0], Integer
. parseint (Temp[1]));
SB = new StringBuffer (sb.tostring (). replace (Submask,
replacedstring));
Continue
}
if (Submask.contains ("-")) {
String Tempsubmask = Submask.replace ("[", "" "). Replace ("] ",
"");
string[] temp = tempsubmask.split ("\\-");
String replacedstring = Handleminus (temp[0], Integer
. parseint (Temp[1]));
SB = new StringBuffer (sb.tostring (). replace (Submask,
replacedstring));
Continue
}

Judgment, if there is a "[" or "]" the character is to be dealt with separately
SimpleDateFormat df = new SimpleDateFormat (submask);
String replacedstring = Df.format (New Date ());

Make a string like [yyyy] in a string into a string of 2013.
SB = new StringBuffer (sb.tostring (). replace (Submask,
replacedstring));
}
Return sb.tostring (). replace ("[", ""). Replace ("]", "" ");
} else {
return amask;
}
}

 /**
  * \brief to determine if there is a specific letter in the string
  *
  * @param args
  * @attention
  * @aut Hor Toto
  * @date 2013-11-15
  * @note begin modify by modifier modification Time Modified Content Summary Description
  */
 //public S tatic void Main (string[] args) {
  //System.out.println ("YYYY". toLowerCase ());
  //System.out.println (date2string ("sevp_nmc_weap_sob_er24_achn_lno_p9_[yy][mm][dd][hh][mm][fff]xx. MIC "));
  //System.out.println (date2string ("[YYYY]-[MM]-[DD] [HH]:[MM]:[SS] [E]");
  //System.out.println (date2string ("[yyyy].[ MM]. [DD] [G] ' at ' [HH]:[MM]:[SS] [z] "));
  //System.out.println (date2string ("[y][mm][dd][hh]_[mm][dd][hh]_[mm][dd].000"));
  //system.out.println (Date2string ("[y+1][mm][dd][hh]_[mm][dd][hh]_[mm][dd].000"));

Boolean B =
Pattern.compile ("(? i) [A-z]"). Matcher ("ada123456"). Find ();
System.out.println ("Do you want to include the specified characters?" + "+ b);
// //
Pattern pattern = pattern.compile ("yy");
//
SimpleDateFormat df = null;
Date chgdate = null;
try {
//
} catch (Exception e) {
Todo:handle exception
// }

System.out.println (date2string ("MM DD day 08 O'Clock-dd 08 O'Clock"));
System.out.println (Date2string ("[Yy][mm][dd][hh]00[mimi]"));
System.out.println (Date2string ("[y][mm][dd][hh]_[mm][dd][hh]_[mm][dd].000"));
System.out.println (date2string ("-----------------------------------------"));

String str =
"Sevp_nmc_weap_sob_er24_achn_lno_p9_[yy+1][mm][dd][hh][mm][fff]xx. MIC ";
Pattern pattern = Pattern.compile ("(\\[\\w*\\+{0,}\\d{0,}\\)");
Pattern pattern = Pattern.compile ("(\\[\\w*\\)");
//
Matcher Matcher = Pattern.matcher (str);
while (Matcher.find ()) {
SYSTEM.OUT.PRINTLN ("group 0:" + matcher.group (0));//Get Group No. 0-the entire match
System.out.println ("Group 1:" + matcher.group (1));//
Get the first set of matches--matching with (or)
System.out.println ("Group 2:" + Matcher.group (2));//
Get the second set of matches--with (ld!) Matched, the group is also the sub-expression
System.out.println ("Start 0:" + matcher.start (0) + "End 0:"
+ matcher.end (0));//Total matching index
System.out.println ("Start 1:" + matcher.start (1) + "End 1:"
+ matcher.end (1));//first set of matching indexes
System.out.println ("Start 2:" + Matcher.start (2) + "End 2:"
+ matcher.end (2));//second set of matching indexes
System.out.println (str.substring (Matcher.start (0),
Matcher.end (1)));//The substring--wor from the total match start index to the 1th set of matching end indexes
// }

Get the current Calendar class
Calendar calendar = Calendar.getinstance ();
Calendar.set (Calendar.year, calendar.year+1);
System.out.println (Calendar.get (calendar.year) +1);
Calendar.set (Calendar.month, Calendar.get (calendar.month) +3);
System.out.println (Calendar.get (calendar.month));

Calendar.set (Calendar.day_of_month, Calendar.get (calendar.day_of_month) + 3);
Calendar.set (Calendar.hour_of_day, Calendar.get (calendar.hour_of_day) + 3);
System.out.println (Calendar.get (calendar.hour_of_day));
//}
}

Date plus minus