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  People working with computers seem to have a lot of spare time

People working with computers are a group of people who spend much time on communicating with PCs, Handsets and other programmed hardware devices. Usually, these people are thought as a group of busy people. When we see them, they are often sleepy and seem not caring about anything else. They often work day and night, spend many hours on finding and fixing an unknown bug or trying to meet the project deadline  Are they really so busy?  Lets see what some people think about them? Just f...

   Programming,Busy,Spare time,Fun     2012-05-01 07:06:51

  Use Java ThreadLocal with caution

According to Oracle documentation, ThreadLocal is a class provides thread-local variables. These variables differ from their normal counterparts in that each thread that accesses one (via its get or set method) has its own, independently initialized copy of the variable. ThreadLocal instances are typically private static fields in classes that wish to associate state with a thread. In short, ThreadLocal variables are variables belong to a thread, not a class or an instance of a class. One common...

   JAVA,MEMORY LEAK, THREADLOCAL     2015-11-03 07:31:57

  All Programming is Web Programming

Michael Braude decries the popularity of web programming:The reason most people want to program for the web is that they're not smart enough to do anything else. They don't understand compilers, concurrency, 3D or class inheritance. They haven't got a clue why I'd use an interface or an abstract class. They don't understand: virtual methods, pointers, references, garbage collection, finalizers, pass-by-reference vs. pass-by-value, virtual C++ destructors, or the differences between C# struc...

   Programming,Web programming,Opposite,Views,Web app     2011-11-12 10:38:00

  The evolving history of asynchronous operation in JavaScript

JavaScript is single threaded, it means there would be only one task running at any point of time. But this would slow down the overall program execution if there is long running task, hence asynchronous task execution is desired in complex cases. To achieve asynchronous task execution, there are a few options introduced in JavaScript. setTimeout/setInterval Event Promise Async/Await setTimeout/setInterval is one of the first mechanisms introduced in JavaScript to simulate asynchronous operati...

   JAVASCRIPT,ASYNC,PROMISE,AWAIT     2019-11-09 08:21:56

  Chrome overtakes IE as the No.1 browser

According to data from market research company StartCounter, by May 2012, Chrome has overtakes IE as the No. 1 web browser globally. Firefox and Safari is following IE to be 3rd and 4th most popular web browser.In May, market share of Chrome is 33%, while IE only gets 32%. Firefox is slowly dropping, which has a share of 25%.  However, with release date of Windows 8 approaching, IE 10 will also be shipped with Win8, at that time, the number of users who use IE may increase because according...

   Chrome,No.1,IE,StatCounter     2012-05-21 06:03:04

  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

  Microsoft’s “Picture Password”: A Breath Of Fresh Air On The Lock Screen, Of All Places

Remember that feeling you got back when Steve Jobs was unveiling the iPhone, and he did the “slide to unlock” gesture for the first time? I remember the way he said it – “You like that? Want to see it again?” Since then I haven’t seen a lock screen interface that has made me feel that same “how obvious, how elegant!” feeling – until today at the NVIDIA press conference, and later at the Microsoft keynote here at CES. It sounds a little silly...

   Microsoft,Windows 8,Picture Password,CES     2012-01-10 06:55:28

  Python internals: how callables work

[The Python version described in this article is 3.x, more specifically - the 3.3 alpha release of CPython.] The concept of a callable is fundamental in Python. When thinking about what can be "called", the immediately obvious answer is functions. Whether it’s user defined functions (written by you), or builtin functions (most probably implemented in C inside the CPython interpreter), functions were meant to be called, right? Well, there are also methods, but they’re not very ...

   Python,Callable work,Rationale     2012-03-24 05:20:27

  Google released a visual programming language Blockly

Google released a visual programming language Google Blockly, similar to the children programming language Scratch developed by MIT. You can build an application using some graphic objects, this is like playing LEGO toys. Eveny graphic object is a code block,  you can integrate them together to create simple functions, then you can combine some simple functions together to build a complete application. Users can drag blocks together to build an application. No typing required.This project...

   Google,Blockly,Visual programming language     2012-06-05 08:58:26

  Bug caused by using changeable value as the default in "python method overload"​

In python we can set the passed in parameter's default value to make the function has the same running feature as the method overload in Java. Define a function like this: def testFunction(self, param1, param2=None, param3=None): Normally we use "None" as the parameter's default value. We can also use str/bool as the default value, but is it OK we use empty list [] as its default value? This is our test program: """ A test program using empty list as the passed-in parameter's default value. ...

   PYTHON     2019-03-11 08:52:52

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