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  Windows 8 price is unveiled

Although it's still half month away from releases of Windows 8, Microsoft releases price of all versions of Windows 8 on Windowsteam blog. From now on, users can pre-order this product on Amazon, Bestbuy, Staples and Office Depot. The prices for different version : Windows 8 Professional Upgrade : $69.99 Windows 8 Pro Pack-Product Key Card : $69.99 Windows 8 64 bit(Full Version) -- OEM : $99.99 Windows 8 32 bit (Full Version) -- OEM : $99.99 Windows 8 Professional 32 bit (Full Version) -- OEM ...

   Windows 8, Price     2012-10-12 20:03:55

  MySQL index optimization

Problem description: We need to access a very big table which has 40 million records. In the table, id is the primary key and program_id is indexed. When executing a select query: select * from program_access_log where program_id between 1 and 4000 The above query executes very slowly, we thought it was because there were too many records in the table. So we added id in the where condition to limit the search so that each time only half a million records would be read. select * fr...

   MySQL,Index search, Partition     2012-12-26 13:14:20

  7 misunderstandings of DNS resolution

DNS resolution is generally considered as providing mapping between domain name and IP address, for example www.google.com maps to 74.125.71.103. There are two important reasons for doing DNS resolution: IP address is hard to remember, while domain name is human friendly Virtual host may access different contents according to the header of the host domain name(sub-domain name) Some webmasters may have some unreasonable requirements when doing DNS resolution. It mainly because they are not very...

   DNS resolution,misunderstanding     2012-10-20 12:57:16

  Deep Understanding of ReentrantLock: Unlocking the Mysteries of Java Concurrent Programming

ReentrantLock introduction ReentrantLock is a class in the Java concurrent package, java.util.concurrent.locks, and is an implementation of the Lock interface. As its name suggests, it is a reentrant mutual exclusion lock. A mutual exclusion lock is a synchronization tool used to protect shared resources, ensuring that only one thread can access the resource at a given time. Reentrant means that a thread can acquire the same lock multiple times without causing a deadlock. This lock provides some...

   JAVA,REENTRANTLOCK,CONCURRENCY,MULTITHREADING     2023-05-22 08:01:13

  Square bracket in checkbox name

0down votefavorite i have a form with checkboxes like this:    <input type=\"checkbox\" name=\"type[]\" value=\"1\" />Fast Food<br>    <input type=\"checkbox\" name=\"type[]\" value=\"2\" />Table Service<br>    <input type=\"checkbox\" name=\"type[]\" value=\"3\" />Cafeteria<br> when i use the brackets in the name (type[]), my php works:    $type=$_POST[\'type\'];    echo \"types are:\";for ( $counter...

   Square bracket,PHP,JavaScript,Array of n     2011-03-22 10:32:40

  Android socket programming example

Socket is a kind of interface for different sides t communicate, it usually identified by an IP and a port. There are many server side software on a server and they would provide different service. Each server many create some sockets and bind them to some ports so that clients can listen to. Software on the Internet will exchange data though a bidirectional connection established. Each end of the connection has a socket created. In Java, Socket and ServerSocket are in java.net package, ServerSo...

   Android,Socket,Java     2013-05-11 22:17:16

  Tips, Tricks and Tools You Will Need to Start Using HTML5 Today

IntroductionHTML5 has been a really hot topic in web development. With the support of most modern browsers available (Safari, chrome, firefox, IE10 and mobile devices), even though the specification has not fully completed yet, but many people have already adopted it as the main technology for all the web development projects. Online giant websites such as Google, facebook, twitter and youtube, they are all built in HTML5!For me, the most exciting features of HTML5 are the canvas and the robust ...

   HTML5,Web development,Tools,Tricks,Tips     2011-10-10 05:28:53

  CSS filter effects in action

CSS filter effects in action Ever since CSS filter effects landed in WebKit, I thought about theirs practical implementation. How will they fit with the current web design trends? At this time, my initial impressions are that the best way to showcase the power of CSS filters is something like an image gallery. With so many CSS filters to choose from, it will be fun to create image galleries in the future. Further in this article we’ll cre...

   CSS,filter effect     2012-05-02 05:57:11

  What can .htaccess file do?

A .htaccess file is a directory-level configuration file supported by several web servers, that allows for decentralized management of web server configuration. What can a .htaccess file do? We summarized some of them here.  Hope it may help you. 1. Timezone settingSometimes when you use date() or mktime() functions in PHP, , it may display some weird information because of the timezone difference. For example, one possible warning is :Warning: date(): It is not safe to rely on the syste...

   .htaccess,setting,tip     2012-06-15 06:39:39

  How Is The POS Machine Conquering The Market Economy?

  In today's market, cash is losing its importance. Online transactions have taken over the market with credit cards, and debit cards used a lot by the customers. You are way behind your times if you still use just cash for your business and do not have a credit card machine. For all those businessmen, who do not have a credit card machine, here's a list of benefits that a credit card machine offers you. Knowing these benefits will help you in getting into the market by accepting cashless ...

   POINT ON SALE MACHINE,ONLINE PAYMENT     2018-11-23 03:25:14

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