java class diagram tool

Importjava.text.*;ImportJava.util.*; Public classDateFormat {/*** Format output of date type *@paramDate *@return */ Public StaticString DateFormat (date date) {SimpleDateFormat formatter=NewSimpleDateFormat ("Yyyy-mm-dd HH:mm:ss"); String datestring=Formatter.format (date); returndatestring; } /*** Convert "2015-08-31-21:08:06" string to date *@paramSTR *@return * @throwsparseexception*/ Public StaticDate stringtodate (String str)throwsparseexception{SimpleDateFormat Formatte

Label:Just to implement a function, so write only one method, for easy invocation, set as static method 1 Packagecom.jv;2 3 Importjava.sql.Connection;4 ImportJava.sql.DriverManager;5 6 Public classLianjie {7 8 //static method Gets the Connection object 9 Public StaticConnection Getlianj ()throwsExceptionTen { One AClass.forName ("Oracle.jdbc.driver.OracleDriver"); - -String url = "Jdbc:oracle:thin: @localhost: 1521:orcl"; the -Connection conn = driv

Package Com.sh.xrsite.common.utils;import Java.io.file;import Java.util.hashmap;import java.util.Locale;import Java.util.map;import Java.util.regex.matcher;import Java.util.regex.pattern;import Org.apache.commons.mail.htmlemail;import Org.springframework.ui.freemarker.freemarkertemplateutils;import Freemarker.template.configuration;import freemarker.template.template;/** * Send email */public class SendMailUtil {//PRI vate static final String smtph

} - - Threadpool.shutdown (); - } -}In the code, although there are 30 threads executing, only 10 concurrent executions are allowed. The semaphore method Semaphore (int permits) accepts an integer number that represents the number of licenses available. Semaphore (10) indicates that 10 threads are allowed to obtain a license, that is, the maximum number of concurrent is 10. The use of semaphore is also simple, with the first thread using Semaphore's acquire () to obtain a license,

* DATETIMESTR must be in the form of FORMATSTR * @param datetimestr * @param formatstr * @return */public static Date getDate (String datetimestr, String formatstr) {try {if (Datetimestr = = NULL | | datetimestr.equals ("")) {return null; } dateformat sdf = GetDateFormat (FORMATSTR); Java.util.Date d = sdf.parse (DATETIMESTR); return D; } catch (ParseException e) {throw new RuntimeException (e); }}/** * Converts YYYYMMDD to a date date * @pa

public class MyDate {public static String GETDATECN () {SimpleDateFormat format = new SimpleDateFormat ("YYYY year mm month DD Day HH : Mm:ss "); String date = Format.format (new date (System.currenttimemillis ())), return date;//October 03, 2012 23:41:31}public Static String Getdateen () {SimpleDateFormat format1 = new SimpleDateFormat ("Yyyy-mm-dd HH:mm:ss"); String date1 = Format1.format (New Date (System.currenttimemillis ())); return date1;//201

= 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's days * * @param date* Date String* @param format* Date Format* @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

Package Com.eabax.plugin.yundada.utils;import Java.text.parseexception;import Java.text.simpledateformat;import Java.util.arraylist;import Java.util.calendar;import Java.util.date;import Java.util.gregoriancalendar;import Java.util.linkedhashmap;public class Timeutil {/** * resolves all months between a date * * @param begindatestr * @param enddatestr * @return */public static arraylist　　Java Time

/*** Response Structure* @author Yliu*/public class ResultutilResponding to business statusPrivate Integer status;Response messagePrivate String msg;Data in the responsePrivate T data;Public Integer GetStatus () {return status;}public void SetStatus (Integer status) {This.status = status;}Public String getmsg () {return msg;}public void Setmsg (String msg) {this.msg = msg;}Public T GetData () {return data;}public void SetData (T data) {This.data = dat

CodeImport java.util.collection;/** * */public class Emptyutil {/** * Determines whether a string is empty and a length of 0 is considered an empty string. * * @param str * @return */public static Boolean isEmpty (String str) {if (str! = null) { Return Str.trim (). Length () = = 0; } else {return true; }}/** * To determine if a string is empty, the string is truncated before and after it is truncated, and a length of 0 is

){ returnCellvalue; } //read the number as a string to avoid 1 Read 1.0 if(Cell.getcelltype () = =cell.cell_type_numeric) {Cell.setcelltype (cell.cell_type_string); } //determine the type of data Switch(Cell.getcelltype ()) { CaseCell.cell_type_numeric://DigitalCellvalue =string.valueof (Cell.getnumericcellvalue ()); Break; CaseCell.cell_type_string://stringCellvalue =string.valueof (Cell.getstringcellvalue ()); Break; CaseCell.cell_type_bo

The Tool class summarizes the rapid ordering of Java in simple and straightforward way. Hill sort, insert sort, heap sort, merge sort five sort algorithms, the code does not have a description of these sorts of algorithms, about the thought part wants to check the relevant instructions, here is only a summary of these algorithms for everyone to use. publi

(); if(Params! =NULL) { for(EntryE:params.entryset ()) {Parambbuilder.append (E.getkey ()). Append ("="). Append (Urlencoder.encode (string.valueof (E.getvalue ()), "UTF-8")). Append (""); } Parambbuilder.deletecharat (Parambbuilder.length ()-1); } //Dataoutputstream.writebytes writes a 16-bit Unicode character in a string as a 8-bit character in the streamout.writebytes (parambbuilder.tostring ()); Out.flush (); Reader=NewBufferedReader (NewInp

1 ImportJava.math.BigInteger;2 Importjava.security.MessageDigest;3 Importjava.security.NoSuchAlgorithmException;4 5 Public classMd5utils {6 /**7 * encryption using MD5 algorithm8 */9 Public Staticstring MD5 (string plaintext) {Ten byte[] Secretbytes =NULL; One Try { ASecretbytes = messagedigest.getinstance ("MD5"). Digest ( - plaintext.getbytes ()); -}Catch(nosuchalgorithmexception e) { the Throw NewRuntimeException ("No MD5 this algorithm!") "); -

") Public voidsessiondestroyed (Httpsessionevent event) {HttpSession session=event.getsession (); ServletContext Application=Session.getservletcontext (); HashSet Sessions= (HashSet) application.getattribute ("Sessions"); //the destroyed session is removed from the hashset set.Sessions.remove (session); } /*** Access to the number of online users and number of users logged in *@paramrequest current Requested Object *@paramflag=1 Current Online users flag=2 number of currently logged on u

1. Get timestamp of N days ago1 Calendar cl = calendar.getinstance (); 2 Cl.add (Calendar.day_of_year,-7); 3 Date date = cl.gettime (); 4 long time = date.gettime (); 5 New Timestamp (time);2. Program start current time and task execution time1 /*2 Delegate Time3 */4String time= "20:00";5 6 /*7 SimpleDateFormat can parse string to Date, format Date to string8 */9DateFormat DateFormat =NewSimpleDateFormat ("Yy-mm-dd hh:mm");TenDateFormat DayFormat =NewSimpleDateFormat ("Yy-mm-dd"); One ADate cur

=NewProperties (); $InputStream is =NULL; $ Try { -is = Propertiesutil.class. getClassLoader (). getResourceAsStream ( - properiesname); the P.load (IS); -}Catch(IOException e) {Wuyi //TODO auto-generated Catch block the e.printstacktrace (); -}finally { Wu Try { - is.close (); About}Catch(IOException e) { $ //TODO auto-generated Catch block - e.printstacktrace (); - } - } A returnp; + } the - Public voidWrite

Reference:Http://www.cnblogs.com/nayitian/p/3269585.htmlpublic static void Main (string[] args) {TODO auto-generated Method StublistPokerlist.add (13);Pokerlist.add (14);Pokerlist.add (3);System.out.println ("Far Order:" + pokerlist);1) sort (from small to large)Collections.sort (pokerlist);System.out.println ("Sort after order:" + pokerlist);2) Invert/invertCollections.reverse (pokerlist);System.out.println ("Reverse after Order:" + pokerlist);3) sort (from big to small)Collections.sort (Pokerl

Private StaticFinalintBLACK =0xff000000; Private StaticFinalintWhite =0xFFFFFFFF; PrivateMatrixtoimagewriter () {} Public Staticbufferedimage tobufferedimage (Bitmatrix matrix) {intwidth =matrix.getwidth (); intHeight =matrix.getheight (); BufferedImage Image=Newbufferedimage (width, height, bufferedimage.type_int_rgb); for(intx =0; x ) { for(inty =0; Y {Image.setrgb (x, y, matrix).Get(x, y)?black:white); } } returnimage; } Public Static voidWriteToFile (Bitmatrix matrix

); Client.getstate (). SetCredentials (Authscope.any,creds); Client.getparams (). Setauthenticationpreemptive (true); Postmethod Post=NewPostmethod (jenkinsbaseurl+ "/job/" +jobname+ "/api/json"); Post.setdoauthentication (true); Client.executemethod (POST); String result=post.getresponsebodyasstring (); intBuildNumber = with (result). Get ("Lastbuild.number"); Postmethod stopjenkinsrequest=NewPostmethod (jenkinsbaseurl+ "/job/" +jobname+ "/" +buildnumber+ "/stop");