Java compressed file tool class ZipUtil usage code example, tool class ziputil
This example uses the Java Zip input/output stream to compress and decompress files. The first part of the code is used to obtain the file path and change the compressed file name. The details are as follows:
Package com.utility.zip; import
slowIf you are prompted, click OK to continue the installation.After the installation is complete, you need to restart eclipseafter you wait for Eclipse to restart, check to see if the plugin is installed successfully .Check the Window->preferences--> Java-->decompiler to see if the Demopiler option exists, and if so, the installation is successful, and you can configure jd-eclipse here (that is, the Java
Java property file properties common operation tool class, properties tool classFor the java. util. Properties class, we usually only need to achieve the following three learning objectives:1. Understand the properties file, understand its meaning, and create the properties file correctly.2. the
Java JSON processing tool class Usage Details, json tool class
This example shares the code of the JSON processing tool class for your reference. The details are as follows:
Import java. io. IOException; import java. util. date; i
Org. apache. httpcomponents: httpclient tool class, java tool class
Httpclient version 4.4.1
Because http connections require three handshakes, resources and time are wasted when frequent calls are required.
Therefore, the connection pool is used for connection.
Change the maximum connection pool connections and maximum route connections as needed
Another thing t
First, SVNSVN server: https://subversion.apache.org/1. What is version control: Versioning is the standard way to maintain a blueprint for a project that tracks the process from birth to finalization. is a system that records changes in several file contents so that a specific revision of the system can be consulted in the future.2. What are the bad things that happen without versioning:(1) Code Management Confusion(2) Backing up multiple versions, consuming large disk space(3) Difficulty in res
Detailed description of java zip and rar tool use tutorials, zip tool class
Detailed description of java decompress zip and rar tool class use tutorials directly on the code
Package decompress; import java. io. file; import
Android/java common tool source code, androidjava tool class
Anroid, common java tool source code, including file operations, MD5 algorithms, file operations, string operations, debugging information log, base64, and so on.
: Http://download.csdn.net/detail/a358763471/7803
Java MD5 encryption tool class, javamd5 tool class
Import java. security. messageDigest;/*** MD5 encryption tool class * @ author zwq */public class MD5Util {/*** MD5 encryption ** @ param message the information to be encrypted, for example: 123456 * @ return returns the MD
See this topic is not most people are dismissive, indeed almost every Java program ape has written the JSON tool class, and many people have used json-lib.jar encapsulation of similar functions, but I use the regular to support the XML and JSON, reduce the introduction of the jar package. Basically meet the needs. Of course, if you need more powerful features, it's best to use json-lib to achieve it.
Take a
Qt tool and java encryption and decryption Tool1. The following operators are available for string-type 1.1 operator strings. (1) QString provides a binary "+" operator to combine two strings, and provides a "+ =" operator to append a string to the end of another string. For example: QString str1 = "Welcome"; str1 = str1 + "to you! "; // Str1 =" Welcome to you! "QString str2 =" Hello, "; str2 + =" World! ";
Java Development Tool (use of content auxiliary keys in Eclipse) and Development Tool eclipse
* A: Alt +/serves as A prompt* B: main + alt +/, syso + alt +/. Other prompts are provided.* C: Fill in the output statement and select the part to be output. alt +/select the last item.* C: define your own alt +/* Windows -- perference-
Java basic Map interface + Collections tool class, collections tool class
1. In Map, we mainly talk about two interfaces: HashMap and LinkedHashMap.
(1) how to obtain the sorted hashmap
Let's talk about the add, delete, modify, and query functions of Map:
/** Add Map set */Map
The above is the addition, deletion, modification, and query method of Map.
2. Map T
Memory layout of java objects (1): Calculate the memory space occupied by java objects and use of the java object layout tool
I recently learned some knowledge about the memory layout of java objects. I want to know how much memory space a
Heap sorting tool class (applicable to top k problems, java generic implementation) and heap sorting tool class
The Code is as follows:
1 public class HeapSort {2 // method function: retrieve the minimum k values in the list. 3 public static
in lowercase **/ Public Static FinalString lower_letter_regexp = "^[a-z]+$"; /*** * matches a string consisting of a number and 26 English letters **/ Public Static FinalString letter_number_regexp = "^[a-za-z0-9]+$"; /*** * matches a string consisting of a number, 26 letters or underscores **/ Public Static FinalString letter_number_underline_regexp = "^//w+$"; /*** Case-sensitive formal expression batching * *@paramSource * Batch-sourced string *@paramRegExp * Regular Expressions
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