java class diagram tool

Concurrency tool classes This series of articles mainly on Java concurrency related content, including synchronization, lock, semaphore, blocking queue, thread pool, etc., the overall mind map as follows: Series of articles list: Java Concurrency Foundation-concurrency model, base interface, and thread Java Co

Package COM. jadyer. util; import Java. io. bytearrayoutputstream; import Java. io. inputstream; import Java. io. outputstream; import Java. io. unsupportedencodingexception; import java.net. httpurlconnection; import java.net. URL; import java.net. urlencoder; import Java.

or decrement a time field Get (Intfield) Returns the value of the given Calendar field getactualmaximum (Intfield) Returns the current maximum value for a given time field getactualminimum (Intfield) Returns the current minimum value for a given time field getinstance () Returns a calendar instance. Because the calendar is an abstract class and cannot be instantiated, you can only get an instance of it by u

Date type in Java scroll forward backward time (with tool class)Don't say much nonsense, first look at the tool class:1 ImportJava.text.SimpleDateFormat;2 ImportJava.util.Calendar;3 Importjava.util.Date;4 5 Public classDateroll {6 7 /**8 * Date type forward backward rol

Getcname () { + returncname; - } + Public voidsetcname (String cname) { A This. CNAME =cname; at } - PublicString Getcompany () { - returnCompany ; - } - Public voidSetcompany (String company) { - This. Company =Company ; in } - PublicString Getgrade () { to returngrade; + } - Public voidSetgrade (String grade) { the This. grade =grade; * } $ Public DoubleGetPrice () {Panax Notoginseng

I. Using the static modifier variable: When shared data is present in an object, the data is statically decorated, and the unique data in the object is defined as non-static in heap memory.Two. Use static to modify static functions: When there is no access to non-static data (object-specific data) inside the function, it can be defined as static.Three. Tool classes are designed to encapsulate functionality (in order to encapsulate data), there are no

)Returns a hash code based on the "deep content" of the specified array.7 Assigning a value to an arraypublic static void Fill (object[] A, Object val)Sets the value of all array elements of an array to Val.8 sortpublic static void sort (short[] a)Sorts the specified array of objects in ascending order based on the natural ordering of the elements. All elements in an array must implement the comparable interface.public static Sorts the specified array of objects according to the order produced b

final Objectmapper MAPPER = new Objectmapper (); /** * Converts an object to a JSON string. */public static string Objecttojson (Object data) {try {string string = Mapper.writevalueasstring (d ATA); return string; } catch (Jsonprocessingexception e) {e.printstacktrace (); } return null; /** * Convert JSON result set to Object */public static Modified Controller@Controllerpublic class Picturecontroller { @Auto

Original: Java string to 16 binary tool class Hex.javaSource code: Http://www.zuidaima.com/share/1550463378410496.htmJava string to 16 binary tool class Hex.java implementation 16 binary 0XFECD. And the Java string to the mutual c

A common programming task is to read from one file, modify the content, and then write the contents to another file. Java to implement read, write operations, you need to create multiple classes to produce a Stream to operate.The following is a simple tool class that encapsulates the read and write operations of a file, providing a concise interface.ImportJava.io

Directory location in the project under the tool class:1. Chinese into pinyin, initials, Chinesechartopinyin, when using this class must be added Pinyin.jar,pinyin.jar has been placed in the Hqhop-framework-web project Lib directory;How to use:The Chinesechartopinyin provides only two methods:public static string Getpinyin (String src) {...} Convert Chinese chara

Expressions the * @returnBoolean - */ in Public Static Booleanreg (String str, string reg) { the BooleanMatch =false; the About Try { thePattern pattern =Pattern.compile (reg); theMatcher Matcher =Pattern.matcher (str); theMatch =matcher.matches (); +}Catch(patternsyntaxexception PSE) { -msg = Conserror. Error_illegal_regex +pse.getmessage (); the logger.error (MSG, PSE);Bayi } the the returnmatch; - } -}At this point,

　This essay mainly introduces a tool class written in the Java language that converts one file encoding to another and does not change the contents of a file:By reading the contents of the source file, it is implemented by recoding and decoding by urlencoding.　　　　　　　　　1 Public classchangefileencoding {2 Public Static intFileCount = 0;3 Public StaticStr

and exchange data types, so when the consumer returns from the Exchange () method, it has 10 strings inside the buffer. When the producer returns from the Exchange () method, it has a blank buffer to re-write. This operation repeats 10 times.As you perform the example, you will find out how producers and consumers are concurrently performing tasks and how they exchange buffers at each step. This happens as with other synchronization tools, and the first call to the Exchange () method goes into

Article title: Java List Sort the tool class by the specified field. Article Address: http://blog.csdn.net/5iasp/article/details/17717179 Includes the following classes 1. Entity class Package com.newyear.wish; /** * Entity class * * */public

Source: Java Random String Tool classSource code: Http://www.zuidaima.com/share/1550463479532544.htmJava random string of the tool class can be all numbers, characters, can also be a combination of characters and numbers of the tool clas