java class diagram tool

(String value) {Return match (V_unpositive_float,value);} /*** Verify URL* @param value to validate the string* @return If it is a string that conforms to the format, return */public static Boolean URL (String value) {Return match (V_url,value);} /*** Verify user registration. Matches a string consisting of a number, 26 letters, or underscores* @param value to validate the string* @return If it is a string that conforms to the format, return */public static Boolean UserName (String value) {Retu

A packaged and linked MySQL database tool class, you can easily get connection objects close statement, ResultSet, statment objects and so on Copy Code code as follows: Package myutil; Import java.sql.Connection; Import Java.sql.DriverManager; Import java.sql.PreparedStatement; Import Java.sql.ResultSet; Import java.sql.SQLException; Import java.sql.Statement; /** * Link MySQL Database

Java Project load configuration file tool class Package com.loadproperties; Import java.io.IOException; Import Java.io.InputStream; Import java.util.Properties; public class Configutil {private static inputstream input; Private volatile properties Configuration = new properties (); A single instance of private

Hashcode code SYSTEM.OUT.PRINTLN (Arrays.tostring (a));//print out an array of } } 4, void Fill (array,val): assigns the array all elements to Val. //fill method: Replace all elements in the array with a value of int[] num={1,2,3}; //Parameter 1: Array object //Parameter 2: Replacement value Arrays.fill (num, 6); SYSTEM.OUT.PRINTLN (arrays.tostring (num));//Print Result: [6, 6, 6] 5, int binarysearch (array,val): Query element value val in array subscript //binarysearch: Find the subscrip

Tag:webtext algorithm retport fdaparseext validation Import Java.text.simpledateformat;import java.util.date;import java.util.hashmap;import java.util.Map;/** * ID information algorithm class * * @author Javaweb * */public class Cardutil {/** * According to the ID number of the current identity card holder's gender and age 18 ID Card * * @return * @throws Exception * * public static map　　

")); Config.settestonborrow (Boolean.valueof (Props.getproperty ("Jedis.pool.testOnBorrow")); Config.settestonreturn (Boolean.valueof (Props.getproperty ("Jedis.pool.testOnReturn")); Instantiate the Jedis pool based on configuration Readpool = new Jedispool (config, props.getproperty ("Redisreadurl"), Integer.valueof (PROPS.GETPR Operty ("Redisreadport")); Writepool = new Jedispool (config, props.getproperty ("Rediswriteurl"), Integer.valueof (Props.getproperty (

student is finished before opening:public class Countdownlatchtest {public static int numberofpeople = The number of students waiting for 10;//public static Boolean isgone = Fals e;//car Open sign public static int carwaittime = 3;//car etc time public static void main (string[] args) throws Interruptedexc eption {Countdownlatch Waitstudentsgeton = new Countdownlatch (numberofpeople); New Thread (New Geton (Waitstudentsg

); -}------------------------------------------------------------------------------------------------------* Objectmax (Collection): Returns the largest element in a given set based on the natural order of the elementObjectmax (Collection,comparator): Returns the largest element in a given set, based on the order specified by ComparatorObjectmin (Collection)Objectmin (Collection,comparator)Intfrequency (Collection,object): Returns the number of occurrences of the specified element in the specifi

Recently free time to tidy up a commonly used tools, repeating the wheel is a waste of time, if not correct or need to improve the place, welcome advice ... Packagecom.hsuchan.business.utils;ImportJava.io.File;ImportJava.io.FileOutputStream;Importjava.io.IOException;ImportJava.io.InputStream;ImportJava.net.URL;Importjava.util.Properties;ImportOrg.apache.log4j.Logger;/*** Java Properties File Operations Tool

*@throwsException*/ Public StaticString decode (file file)throwsException {bufferedimage image; Image=imageio.read (file); if(Image = =NULL) { return NULL; } Bufferedimageluminancesource Source=NewBufferedimageluminancesource (image); Binarybitmap Bitmap=NewBinarybitmap (NewHybridbinarizer (source)); result result; Hashtable hints=NewHashtable (); Hints.put (Decodehinttype.character_set, CHARSET); Result=NewMultiformatreader (). Decode (bitmap, hints); Strin

We usually use the myabtis when not often need to use map to pass parameters, is generally the following steps: public List But if you need to put a lot of fields, and each property name is very long, it is very difficult to get, here can use the Java reflection method to automatically assemble the map, the following is the implementation of the blogger: public class Test {//Implement eff

. * * This software are provided by the COPYRIGHT holders and CONTRIBUTORS ' as * is ' and any EXPRESS OR implied warranties, I Ncluding, LIMITED to, * The implied warranties of merchantability and FITNESS for A partIcular * PURPOSE is disclaimed. In NO EVENT shall the COPYRIGHT OWNER OR * CONTRIBUTORS is liable for any DIRECT, INDIRECT, incidental, special, * EXEMPLA RY, or consequential damages (including, but not LIMITED to, * procurement of substitute GOODS OR SERVICES; LOSS of Use, DATA, OR

obj) {byte[] ba =NULL; Bytearrayoutputstream BAOs=NULL; ObjectOutputStream Oos=NULL; Try{BAOs=NewBytearrayoutputstream (); Oos=NewObjectOutputStream (BAOs); Oos.writeobject (obj); BA=Baos.tobytearray (); } Catch(IOException e) {System.out.println ("Serialization failed!" "); } finally { Try { if(BAOs! =NULL) {baos.close (); } if(Oos! =NULL) {oos.close (); } } Catch(IOException e) {e.printstacktrace (); } } returnBA = =

*/ Public StaticString decode (BufferedImage bufferedimage)throwsdecodingfailedexception, unsupportedencodingexception{qrcodedecoder decoder=NewQrcodedecoder (); return NewString (Decoder.decode (NewMyqrcodeimage (BufferedImage)), "Utf-8"); } /*** Image Zoom*/ Private StaticBufferedImage Resize (bufferedimage image,intsize) {BufferedImage BufferedImage=Newbufferedimage (size, size, BUFFEREDIMAGE.TYPE_INT_RGB); Graphics2D GS=Bufferedimage.creategraphics (); Gs.setbackground

Java string type-convert the hexadecimal literal value to the nominal value byte data tool class private static byte hexValueOf(String hex) {byte result = 0;if (hex.charAt(0) == '0' (hex.charAt(1) == 'X' || hex.charAt(1) == 'x')) {for (int i = 2; i System.out.println("

Java.util.concurrent.LockLock is more object-oriented than the synchronized in the traditional threading model, similar to the lock in life,The lock itself should also be an object. Code fragments executed by two threads to achieve the effect of a synchronous mutex, they must use the same lock object.Lock replacement synchronized　　classOutputer {lock lock=NewReentrantlock (); Public voidoutput (String name) {intLen =name.length (); Lock.lock (); Try{ for(inti = 0;

Key tool guis 1.7 /*** * * * * @ Author Rainbow (webmaster) Haha add more information about PKI in. ciso. Are you welcome to check it out?* Hope to join us!* @ Version 1.0.2003.0620*/Import java. Io .*; Import org. bouncycastle. asn1 .*;Import org. bouncycastle. asn1.util .*;Import org. bouncycastle. asn1.x509 .*;Import org. bouncycastle. util. encoders .*;Public class