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  Top 10 essential Java classes

When we write Java programs, we will frequently use some classes such as java.lang.String. There are some essential Java classes which we may use frequently, there is no strict rules for the selection of essential Java classes, in fact there are no rules followed. It depends on what projects you are doing or what you have done,, so every one may have his own choices about the top essential Java classes in his mind. Here we list the top 10 essential Java classes you may agree with.1. java.lang.St...

   Java,class,essential class,top 10     2012-06-04 09:44:19

  Google is developing advanced programming technology to simplify Web application development

Beijing, March 28. According to foreign media reports, Google engineer Alex Russell this week at EclipseCon meeting said the company is now developing lots of advanced programming techniques to simplify Web application development.Russell said, "Web development has come to a critical point, it is becoming a run-time library integration platform." Although Web is very popular compared to some platforms such as Java or Windows, it provides only a relatively original programming capability. A ...

   Google,Web,Dart,Scalability     2012-03-30 06:22:13

  /dev/null and /dev/tty in Linux

In Linux, there are two special files /dev/null and /dev/tty. /dev/null will drop all the data written to it, i.e, when program writes data to this file, it means the program has completed the data write operation. But in  fact it does nothing, if you just want the status of a command but not the output of a command, this feature will be very useful. See below shell codes:     /> vi test_dev_null.sh        #!/bin/bash    if grep...

   Linux,/dev/null,/dev/tty     2013-03-04 02:23:23

  CASSANDRA data model

Cassandra is an open source distributed database, it combines dynamic key/value and column oriented feature of Bigtable. Features of Cassandra are: Flexible schema, no need to design schema first, it's very convenient to add or delete strings Support range search on keys High usability, extensible. The single node error will not affect the cluster. We can think Cassandra's data model as a 4 or 5 dimensional Hash. COLUMN Columns is the smallest data unit in Cassandra, it is a 3 dimensional data...

   Cassandra,database,sort     2013-06-08 22:07:40

  Handy PHP functions should be in your toolkit

When developing projects, there are always some common work should be accomplished, for example, encrption/decryption, get IP. As a PHP developer, you should have a list of the handy functions in your toolkit so that you can pick up in every project you work on. Here is a summary of some handy PHP functions. 1. PHP encryption/decryption Encryption/decryption can be used when storing user confidential information such as passwords. Below function uses base64 and MD5 to accomplish encryption/decry...

   PHP,function,real IP,SQL injection     2014-12-06 08:46:08

  Shortcut keys in Sublime Text 3(Animated demo)

Sublime Text 3 is a light weight code editor which supports lots of languages. It has lots of shortcuts and plugins easing work of programmers. In this post, we will introduce some shortcuts supported in Sublime Text 3 and show how powerful they are. 1. Select sibling matching(equal) word (Ctrl + D) Put the cursor on one word, press Ctrl + D to select the word, then press Ctrl and following by pressing D, it will select next matching word. The number of Ds pressed will mean number of matching wo...

   TIPS,SHORTCUT KEY,SUBLIME TEXT     2016-04-28 02:41:28

  Error handling style in C

Following are three error handling styles in C.Which one you like the most? Or you don't like any one?1. /* Problem : Not enough. Easy to be wrong */int foo(int bar){        int return_value = 0;        int doing_okay = 1;        doing_okay = do_something( bar );        if (doing_okay)        { ...

   C,Error handling style,Goto,Nested if     2012-04-24 06:51:00

  Is Singapore a good place for startups?

Singapore is long time being considered as a perfect place for living and investing given its beautiful environment, warmly climate,  well-polished legal system and well-known richness. Its government is relatively young and open-minded. They like to take new challenges and embrace new technologies. It's the first country to open its government data to the world online. Many of you may consider that Singapore would be a perfect place for you to start your next startup. But the tr...

   SINGAPORE,STARTUP     2016-03-09 09:06:32

  Microsoft to launch Surface Pro 4 on October 6

Microsoft Microsoft has just updated on their website about an event to be held on October 6. This event will be held in New York at October 6 10am EDT.  As described by Microsoft : "We have some exciting news to share about Windows 10 devices". Although there are no details about what these Windows 10 devices are, many think this is the time when new Lumia Phones and Surface Pro 4 will be launched.  The Lumia devices will be Lumia 950 and Lumia 950XL. Both of them will be shipped wit...

   SURFACE PRO 4,MICROSOFT,WINDOWS 10,LUMIA     2015-09-15 07:31:56

  Twitter user database is hacked

According to Sina Tech, One hacker from Islamic Republic of Mauritania claimed today that he had acquired Twitter's entire user database and he shared over 15000 user account information on file sharing website Zippyshare.These information include the name of each account on Twitter, username and access tokens of third-party applications which have access to their Twitter accounts(such as Instagram or HootSuite).Twitter has yet to comment on the matter, but the company sent messages urging ...

   Twitter,Hacker,Access token     2013-08-20 10:49:44

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