Address: http://alphawang.com/blog/2014/09/utility-classes-are-evil/
This post is a summary of this artical and this one.What's Utility Classes
A utility class is a class filled with static methods. It is usually used to isolate a "useful" algorithm.>StringUtils,IOUtils,FileUtilsFrom Apache commons;IterablesAndIteratorsFrom guava, andFilesFrom jdk7 are perfect
What's Utility Classes
A utility class is a class filled with static methods. It is usually used to isolate a "useful" algorithm.
StringUtils,IOUtils,FileUtilsFrom Apache commons;IterablesAndIteratorsFrom guava, andFilesFrom jdk7 are perfect examples of Utility Classes.
Why Utility Classes
If you have two classesAAnd
This article summarizes the SQL Server 2005 Command prompt utility for reference learning applications.
Practical Tools
Description
Installation location
bcp utility
Used to copy data between a Microsoft SQL Server instance and a data file in a user-specified format.
X:program FilesMicrosoft SQL Server90toolsbinn
DTA Utili
DB2 Utility learning experience (1) 1. DB2 Utility has a simple understanding that DB2 Utility is divided into Online Utility and Stand Alone Utility. In most cases, it is run in JCL mode, DB2 Online Utility requires a sysin dd st
The following articles mainly describe the utility for implementing throttling in the Distributed Management of DB2 9 database and the related commands to be used in actual operations, the following is a detailed description of the main content of the article. I hope you will have a better understanding of it after browsing.
DB2 9 utility for execution of Throttling in Distributed Management:
Defining an im
PHP utility Function Manual: Stream_context_create () Analog post/get
Sometimes, we need to simulate post/get on the server side, that is, in the PHP program to implement the simulation, how to do it? Or, in a PHP program, give you an array, how do you post/get this array to another address? Of course, it's easy to use curl, so what if you don't use the Curl library? In fact, there are already related functions implemented in PHP, this functi
Article Title: how to use the GNU text utility. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
This tutorial shows how to use the GNU text Utility Set to process log files, documents, structured text databases, and other textual data or content sources. The utilities in
DB2 Utility (2) 3. DB2 Online Utility 3.1, LISTDEF Utility can define multiple objects in a LIST and define a name for the set. Generally, we use LISTDEF to define a LIST before a Utility control statement, and use this LIST in the following Utility Control statement. At www
PHP utility Function Manual: Stream_context_create () Analog post/get
Sometimes, we need to simulate post/get on the server side, that is, in the PHP program to implement the simulation, how to do it? Or, in a PHP program, give you an array, how do you post/get this array to another address? Of course, it's easy to use curl, so what if you don't use the Curl library? In fact, there are already related functions implemented in PHP, this functi
To call an SQL statement directly on the command line, follow these steps ::
Osql-E/Q "exit (truncate table cnad. dbo. ss_dataconfig )"
Original link: http://technet.microsoft.com/zh-cn/library/ms162806.aspx
UseOsqlA utility that can be used to input Transact-SQL statements, system processes, and script files. This utility communicates with the server through ODBC.
:
This function wi
In a project, the template FIELD engine is designed and implemented using html + jquery. The data here will inevitably need to be obtained through ajax, but the Team has different knowledge about js, so I wrote the following auxiliary classes, it can simplify ajax development like ajaxpro.Code-jQueryInvokeMethodAttribute (the label method is used only here, so it is null ):Copy codeThe Code is as follows:[AttributeUsage (AttributeTargets. Method, AllowMultiple = false, Inherited = false)]Public
If your Mac has been in use for some time, or if something happens, then using your Mac's disk utility for first-aid self-test and repair is a very necessary thing, and here's a new friend about how to self-test and fix disks on your Mac.
Open the application first-use tools-disk Utility
After opening the disk utility, select your disk on the left (commonly cal
If your Mac has been in use for some time, or if something happens, then using your Mac's disk utility for first-aid self-test and repair is a very necessary thing, and here's a new friend about how to self-test and fix disks on your Mac.
Open the application first-use tools-disk Utility
After opening the disk utility, select your disk on the left (commonly cal
Before you use HTTP to access a Microsoft SQL Server 2000 database, you must install the appropriate virtual directory. On a computer running Microsoft Internet Information Services (IIS), define and note using the IIS virtual Directory Management utility for SQL Server (click Configure SQL XML support in IIS in the SQL Server Tools program group) A new virtual directory, known as the virtual root. This utility
iis|server| virtual Directory
Using HTTP to access Microsoft? SQL Server? 2000 database, you must install the appropriate virtual directory. On a computer running Microsoft Internet Information Services (IIS), define and note using the IIS virtual Directory Management utility for SQL Server (click Configure SQL XML support in IIS in the SQL Server Tools program group) A new virtual directory, known as the virtual root. This
In a project, the template FIELD engine is designed and implemented using html + jquery. The data here will inevitably need to be obtained through ajax, but the Team has different knowledge about js, so I wrote the following auxiliary classes, it can simplify ajax development like ajaxpro.
Code-jQueryInvokeMethodAttribute (the label method is used only here, so it is null ):
Copy codeThe Code is as follows: [AttributeUsage (AttributeTargets. Method, AllowMultiple = false, Inherited = false)]
Pub
Enterprise Utility Script 16Enterprise Case: Write Network Service standalone process mode rsync system startup scriptFor example:/etc/init.d/rsyncd{start|stop|restart}.Requirements:1. To use the System function library technique.2. To use a function, not a lump of Shi's way.3. Can be managed by chkconfig#!/bin/bash[-f/etc/init.d/functions]./etc/init.d/functions| | Exit2start () {if[ ' lsof-i:873|wc-l ' -gt 0];thenecho "rsyncisrunning ... "elsersync-
The decision to write this series resulted from what happened just now, and I found that the current version of Unity has a Utility standard resource pack with a Fpscounter script that provides basic functionality to show the game's frame rate, and I just wrote a script with the same functionality a few weeks ago. The frustration of "reinventing the wheel" has stimulated me deeply, given that unity officials do not have much introductory work on their
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