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  Some useful code editors for developers

A good code editor will save developers much work. It can help developers find syntax errors easily through code highlight capability. It also makes the code more readable and maintainable through the indentation. Here we recommend some excellent code editors which you may want to have a try. Compilr Compilr is an online IDE, it supports 8 languages as of now including : C, C++,C#,Java,JavaScript,PHP ,Python,Ruby and Visual Basic. Compilr is developed by Ninjia Otter Inc in Canada. CodeMirrow C...

   Code editor,Code highlight     2013-03-20 12:25:13

  Browse OpenJDK Java source code in Eclipse

Java 8 was recently released, many developers are now trying to extract the source code of Java 8 to find out how the new added features such as Lambda expressions, default method in interfaces, new Time API are implemented. How do you manage to download and browse the source code? Today we are going to show how to extract OpenJDK Java source code to Eclipse. Since OpenJDK is adopting Mercurial as its distributed version control system, you need to install Mercurial on your computer first before...

   OpenJDK,Java 8,Source code,Eclipse     2014-06-16 00:53:34

  Access control in Java -- Permission check order

Previously we showed you how to turn on SecurityManager in Java. After SecurityManager is turned on, a series of permission checks will be applied on the code you are calling in your application to protect some resources against malicious access such as files, sockets etc. To perform these permission checks, a set of Permissions will be created and checked using the AccessController. The AccessController has three purposes : To decide whether an access to a critical system resource is to be all...

   JAVA,SECURITY,ACCESSCONTROLLER     2016-03-07 04:17:40

  TIOBE : Objective-C overtakes C++

TIOBE recently released the programming community index for July. From the index,we can find that the biggest change is that Objective-C overtakes C++ as the 3rd most popular language among programmers. Because of the popularity of iPhone and iPad, Objective-C is used by more and more mobile developers who want to develop apps for Apple products. Also, many developers are willing to develop apps for Apple since they can gain more profit on Apple platform than on Android platform.C++ is mainly us...

   TIOBE,July,C++,Objective-C,overtake     2012-07-05 22:49:49

  Chrome 23 supports Do Not Track now

Google has upgraded its browser to Chrome 23, released for Windows, Mac, Linux and Chrome framework. New features brought by Chrome 23 include GPU video decode acceleration, more convenient site permissions management and start supporting DNT agreement. The most important feature of this version upgrade is the support for "Do Not Track (DNT)". As one of the solutions to address online privacy issues, DNT protocol allows Internet users to control how their privacy information can be tracked, als...

   Chrome 23, Do Not Track,DNT     2012-11-07 11:27:26

  jQuery 2.0 gives up IE 6/7/8

jQuery 2.0 is released after 10 months development. jQuery 2.0 is customized for modern web browsers and also considers about mobile devices. But one big change is that jQuery 2.0 will not be  compatible with old versions of IE and its size is 10% less than the version 1.9.1. The execution efficiency is higher as well. jQuery 1.9.x will still be maintained by jQuery team, they will also provide update for it. Those websites which want to be compatible with all browsers should not upgrade to...

   jQuery 2.0,IE support     2013-04-20 07:58:16

  Microsoft is to release Office for iPad and Android

Microsoft plans to release Office series software on iPad and Android based tablets this November. This application's loading screen shows "Office for iOS" on iPad, this may indicate that it may also be compatible with iPhone and iPod Touch. The Office series software will also be available on Android at the same time. Some details about this application are still unknown, such as price and features. Last November there was news showed that Microsoft was developing Office for iOS. Micr...

   Microsoft,iPad,Office,Android,iOS     2012-05-24 03:33:28

  A Python assignment trap

Python has no assignment, it only has reference. Assume, we have following code snippet: >>> values = [0, 1, 2] >>> values[1] = values >>> values [0, [...], 2] Why the result is not [0, [0, 1, 2], 2], instead it goes into an infinite loop? To understand this, we need to understand some basics about Python. Python has no variables, it only has labels. When we run: values = [0, 1, 2] Python will first create a list object [0,1,2], then it labels it as values. If we later...

   Python,Assignment,Trap,Shallow copy     2013-07-19 22:08:36

  Apple patent shows they are developing "Killer" 3D Camera

This is not the first time that Apple patent shows they have interest on 3D camera technology. In November last year, one Apple patent shows that Apple is developing advanced three-dimensional object recognition and verification technology. According to PatentlyApple report (March 30,2012) one patent released this week shows that Apple is developing a 3D camera technology for the future iOS devices. This 3D camera is described as an advanced component with advanced micro-lens, depth, chrom...

   3D Camera,Apple,Patent     2012-04-03 07:46:35

  Emotion analysis on Twitter for past 5 years

Emotion analysis is a new research direction in computer science in these years, what it does is expressing emotions and feelings of people with data. The means to do emotion analysis include natural language processing, statistical and signal processing. The platforms which are most suitable for emotion analysis are also microblogging like social networking platform, Twitter is one good example.Computing Laboratory of the University of Vermont project Hedonometer conducted emotion analysis for...

   Emotion analysisTwitter,Hedonometer,happiness     2013-05-08 06:17:25

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