Share How & Why & Where & What

How Do I Use RSS?

2011-06-20T00:17:00.000-07:00

Setting up an RSS feed differs from one reader to the next, but typically involves clicking on the icon on the page you want to subscribe to and copying the URL from this feed and pasting it into your reader. Whichever method you choose to view RSS feeds, setting up a reader is an easy, user-friendly process.

To view RSS feeds, you collect all the feeds that interest you in one place, either a web page or software on your computer. You can use one of the increasingly popular and user-friendly web-based readers, such as Google Reader, or My Yahoo.

Why Use RSS?

2011-06-20T00:15:00.000-07:00

RSS is an easy way for you to check when content that interests you has been published on edweek.org (and many other sites), without having to continually visit each of them. Your RSS news reader will scan edweek.org multiple times daily (typically hourly), always updating its display to show the most recent content posted to edweek.org.

What Is RSS?

2011-06-20T00:11:00.001-07:00

RSS, short for Really Simple Syndication, enables you to subscribe to content feeds from your favorite sections of edweek.org. Each feed will contain headlines of 15 of the most recent stories published on edweek.org, as well as a short description of the article and a link to the story.

RSS feeds collect and distribute the articles listed on any pages on edweek.org where you see the button.

What does namespace mean in .NET?

2011-06-16T01:34:00.000-07:00

A namespace is a very simple concept. Within your program code and within the code that forms the .NET libraries, names have to be given to lots of things — data types, variables, and blocks of code called functions all have to have names. The problem is that if you happen to invent a name that is already used in the library, there ’ s potential for confusion. A namespace provides a way of getting around this problem.

All the names in the library code defi ned within the System namespace are implicitly prefi xed with the namespace name. So a name such as String in the library is really System::String . This means that if you have inadvertently used the name String for something in your code, you can use System::String to refer to String from the .NET library without confusing it with the name String in your code.

The two colons ( :: ) are an operator called the scope resolution operator . Here the scope resolution operator separates the namespace name System from the type name String . You have seen this operator in the native C++ examples earlier in this chapter with std::cout and std::endl. This is the same story — std is the namespace name for native C++ libraries, and cout and endl are the names that have been defined within the std namespace to represent the standard output stream and the newline character, respectively.

In fact, the using namespace statement in this example enables you to use any name from the System namespace without having to use the namespace name as a prefi x. If you did end up with a name confl ict between a name you defi ned and a name in the library, you could resolve the problem by removing the using namespace statement and explicitly qualifying the name from the library with the namespace name.

What is Pointer Arithmetic of C++

2011-06-15T23:00:00.000-07:00

The addition and subtraction operators are also applicable to pointers. It is called pointer arithmetic. An integral value can be added to or subtracted from a pointer. The value of the pointer is then changed by the integral value times the size of the type the pointer points at. As the void type is not really a type, but rather the absence of a type, it has no size. Therefore, we cannot perform pointer arithmetic on pointers
to void.

In the code below, let us assume that iNumber is stored at memory location 10,000 and that the integer type has the size of four bytes. Then the pointer pNumber
will assume the values 10,000, 10,004, 10,008, and 10,012, not the values 10,000, 10,002, 10,003, and 10,013, as pointer arithmetic always take the size of the type
into consideration.

int iNumber = 100;
int* pNumber = &iNumber;
pNumber = pNumber + 1;
*pNumber = iNumber + 1;
pNumber = pNumber + 1;
*pNumber = iNumber + 2;
pNumber = pNumber + 1;
*pNumber = iNumber + 3;

It is also possible to subtract two pointers pointing at the same type. The result will be the difference in bytes between their two memory locations divided by the size of the type.

int array[] = {1, 2, 3};
int* p1 = &array[0];
int* p2 = &array[2];
int iDiff = p2 - p1; // 2

The index notation for arrays is equivalent to the dereferring of pointers together with pointer arithmetic. The second and third lines of the following code are by definition interchangeable.

int array[] = {1, 2, 3};
array[1] = array[2] + 1;
*(array + 1) = *(array + 2) + 1;

What is Arithmetic Operators of C++

2011-06-15T07:54:00.000-07:00

The arithmetic operators are addition (+), subtraction (-), multiplication (*), division (/), and modulo (%). The first four operators are equivalent to the four fundamental rules of arithmetic. The operators can take operands of integral and floating types. The last operator—modulo—gives the remainder of integer division. If we mix integral and floating types in the expression, the result will have floating type. The modulo operator, however, can only have integral operands. The last assignment in the following code may give rise to a compiler warning as the result of the division is a double and is converted into an int.

For example:
int a = 10, b = 3, c;
c = a + b; // 13
c = a - b; // 7
c = a * b; // 30
c = a / b; // 3, integer division
c = a % 3; // 1, remainder
double d = 3.0;
c = a / d; // 3.333, floating type

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2011-05-15T08:56:00.000-07:00

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Share what is MYSQLI_NUM, MYSQLI_ASSOC and MYSQLI_BOTH?

2010-12-26T21:57:00.000-08:00

The difference in those parameters is only in how the array will be defined.

MYSQLI_NUM = Array items will use a numerical index key.
MYSQLI_ASSOC = Array items will use the column name as an index key.
MYSQLI_BOTH = Array items will be duplicated, with one having a numerical index key and one having the column name as an index key.

How to use Tree component in Flex 4 with Flash Builder

2010-12-16T22:18:00.000-08:00

The Tree component is used to represent a hierarchical data set, providing an interface for the user to drill down through the hierarchy in order to select an atomic element as below:

When using XML as the data source for a Tree, you should use the labelField property to identify what in the data source should be used for the label. The XML data source is being defined inline and has generic element names. But its tag attributes, referred to using @tag, will be used as the labels in the Tree. You can follow the source code I share to see what happen. Another important property is showRoot. In the following code, you couldn’t see the “ROOT” of tree, because I set showRoot=false. (If you don’t like it, you can delete it. The default value of showRoot is true). I hope you enjoy this short article and have fun with flex 4.

Source code:

<?xml version="1.0" encoding="utf-8"?>

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"

   xmlns:s="library://ns.adobe.com/flex/spark"

   xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600">

<fx:Declarations>

<!-- Place non-visual elements (e.g., services, value objects) here -->

</fx:Declarations>



<mx:Tree labelField="@tag" showRoot="false">

<mx:dataProvider>

<fx:XML>

<note tag="My File">

<note tag="Book"/>

<note tag="Video"/>

<note tag="Homework"/>

<note tag="Photos">

<note tag="family"/>

</note>

</note>

</fx:XML>

</mx:dataProvider>

</mx:Tree>

</s:Application>

Two ways to write ActionScript in your Flex application

2010-12-14T18:10:00.000-08:00

Hello! This article is talking about how to write ActionScript in your flex application. There are two ways to write ActionScript in a Flex application. First option is putting ActionScript code within MXML file. This is quite common when handling events. But this approach is best for short pieces of ActionScript. You can place it within Script tags as below:

<fx:Script>
<! [CDATA[
// ActionScript goes here!
]]>
</fx:Script>

Note that Script is defined within the Flex Core components namespace, fx. This namespace isn’t used in the first two chapters, although Flash Builder adds fx:Declarations tags to the default MXML file.

Also, you should surround your code with the <![CDATA[ and ]]> tags Because the MXML file is XML, many characters commonly found within ActionScript will be invalid when the XML interpreter looks at the page. By wrapping the ActionScript within those tags, the ActionScript code will be ignored by the XML interpreter.

A second way to add ActionScript to a Flex application is to store it in a separate text file. There are two primary benefits to going this route and I really recommend this way. First, it makes it easier to navigate and develop your application, with content in multiple files, saving you from searching through increasingly large and complex MXML documents for any particular code.

The second benefit is that once you’ve separated some ActionScript into another file, you can easily reuse it in other projects. Although it’s considered to be a best practice to write your ActionScript in a separate file, most of the examples in many books you read will not do so, because for the sake of simplicity.A separate ActionScript file can then be included by, or imported into, the MXML document. From a functional standpoint, including an ActionScript file has the same effect as if the code were inserted directly into the MXML. So, up to you which way you want to choose to develop your flex projects. I hope you will enjoy coding and have more fun.

How to rotate the Android Emulator?

2010-12-12T22:18:00.000-08:00

Do you know that you can rotate your Android emulator? I am going to tell you how. In order To rotate the Android Emulator, you have to disable the Num Lock key and and use the 7 and the 9 in the num pad to rotate the emulator and change its layout from portrait to landscape.

If you are working on a laptop you can do the same thing by pressing Fn(Function)+7 or Fn+9.

Flex in a Week - Day 1: Flex Basics - episode 1

2010-12-12T20:18:00.000-08:00

This video is from Adobe. It is good for beginner to have a overview of flex and flash builder. Learn about the basics of using Flex and Flash Builder, including setting up Flash Builder, building data-driven Flex applications, and organizing visual elements and code. In this episode of the Flex in a Week training series, you will learn which technologies make up the Adobe Flash Platform.

Enjoy coding and have more fun.

How to build flex application with Flash Builder

2010-12-12T20:05:00.000-08:00

Hello, I found this nice toturial for creating Httpservice with adobe flash builder CS5. It is really easy to learn more. I tried it. It works very well. I hope you are doing well. Enjoy coding and fun.

How to install Adobe AIR Runtime on the Android Emulator

2010-12-08T22:35:00.000-08:00

I am going to share how to install Adobe AIR Runtime on your Android Emulator. First of all, you ensure to install Android SDK. I’ve done and the version I downloaded is “installer_r08-windows.exe (Recommended)”. I can’t wait to share it to you. Get started.

Step 1) Use Command Prompt change the folder
After you install it, you click “Start” to open “Command Prompt” to change folder to “platform-tools of Android”. In my case, this folder is on the path(“C:\Program Files\Android\android-sdk-windows\platform-tools”) of my laptop.

Step 2) download and unzip Adobe AIR Runtime
You can go to Adobe website(http://www.adobe.com/products/air/sdk/) to download Adobe AIR Runtime. I did and put it on my laptop. You can find the “Runtime.apk” on the path (C:\Users\Jack\Desktop\AdobeAIRSDK\runtimes\air\android\emulator\).

Step 3) Open your Android emulator
You open your Android emulator you already NEW and keep it on as bellow.

Step 4) Type install apk command
Now, you could type install apk command on your command prompt. The command is “adb install pathofRuntime\Runtime.apk”. In my case, the command is going to be “adb install C:\Users\Jack\Desktop\AdobeAIRSDK\runtimes\air\android\emulator\Runtime.apk”. After that, wait could minutes, you will see the successes message that means Adobe AIR Runtime is installed on you android emulator.

Step 5) Check it out on your emulator
You can take a look if AIR Runtime really is installed. You can see what I’ve done as below.

It might take time to do and be patient. It is really interesting for me. I feel excited to learn how to create android application with flash IDE. I hope you enjoy it as well. If you have any ideas or questions, please feel free to let me know. Thank you so much.

What do you need to install for develop AIR Application on Android without Android device

2010-12-08T18:08:00.001-08:00

If you want to develop AIR Application on Android with Adobe powerful software, you need to read this article. This article is good for beginner. When you start to build your Android application, you have to build a developing environment first. So I am going to tell you what you need to establish your environment. Here we go.

I’d like use flash-base software to develop AIR Application. We divide into three parts:

Step 1) Java SDK
First of all, you have to download Java SDK (http://www.oracle.com/technetwork/java/javase/downloads/index.html) and install it. If you’ve done this, you can skip this step.

Above Figure is Installing JDK

Step 2) Android Part

Of course, you need Android SDK. The Android SDK includes a mobile device emulator -- a virtual mobile device that runs on your computer. The emulator lets you prototype, develop, and test Android applications without using a physical device. You just download and install Android SDK; you can “New” your virtual Android device on your laptop or PC. Here is the URL(http://developer.android.com/sdk/index.html).

The virtual Android device I new on "Android SDK and AVD Manager"

Step 3) Flash Builder or Flash CS5 Pro

If you choose flash-based software to develop Android applications, so you can download the Adobe Flash Builder (trial version) or Adobe Flash CS5 Pro (Trail version). Both are using ActionScript language to create application. ActionScript 3 is an implementation of ECMAScript, which is very similar to JavaScript. Flash Proefssional provides vector-based graphics rendering, along with native audio and video capabilities, and uses the ActionScript language to add interactivity to websites leveraging Flash Player. Flash Builder 4 (formerly Flex Builder) is an Eclipse-based IDE with support for application debugging and profiling. If you choose either one, you don’t need to install “Flex 4 SDK”, otherwise, you have to do. This is the way I am doing. You can different developing software. That is ok.

This is a short article for beginner like me. If I have something new, I will share for you. I hope you enjoy it. Have fun. Thank you!

Share how to convert JPEG to PDF format with portable freeware

2010-11-07T17:31:00.001-08:00

JPEGtoPDF is quite powerful freeware to help me convert most image formats to PDF file. When I scan some documents with separated image files, I always spent so much time to convert them to PDF. Now here is nice tool. It is also to use it easily. Don’t worry about this part. I am going to tell you how easy it really is. Only one thing you need to do that is downloading the tool and double clicks it. It is able to convert images to PDF for you. Are you ready to follow me step by step?
Let get started!
Step1. Go to website and download it(Click here to download). It is zip file. You have to unzip it. You can choose where you want it to be. Just double click it. The Graphic User Interface is just like as below.

(Click here to download)

Step2. Click “Add files” to add file (image file) from your hard disk as many as you want.

Step3. You have couple options you can set or just use default setting on the right side of panel. I rarely use those options. If you need them, you can use them. No problem they work.

Step4. Final step and most important thing is you have to click “Save PDF”. It will save all your image files as one PDF file in the “Output Path” you choose.

That’s it. Very easy and don’t need install it. If you need it, just try it. I hope it can help you.If you have any idea or questions, Just write me comments.

Thank you so much. Have a nice day.

Share how to use Color conversion online

2010-10-28T19:29:00.000-07:00

I am going to tell the website which can help you convert CMYK to CMY, RGB, Greyscale model. Pretty easy. Are you ready to start?

Step 1. Go to Color conversion website.

Step 2. Type in the CMYK color model you already have. Then click Convert buttom.
Step3. You will got three models it convert.

It is cool web tool to convert color model to another. I hope you will love it.

Share How to add Page Navigation Number on Blogger

2010-10-25T01:17:00.000-07:00

Page navigation is very useful for blog or website. Your visitors can surf your blog with page navigation easily. Now you know that. I am going to tell you how to add it on you blog. Here is the page navigation my blog has.
Are you ready? Let get started! Just follow the steps as below. You will get this done soon.
Step1. Open Page NavigationWidget URL.( http://bloggerplugins.org/installers/bloggerpagenavi.html)

Step2. Change the settings for your blog.
Step3. Click customize button. Then click “Add widget to my blog” to add the widget to your blog. (If you don’t log in your blog yet, it will show blog log in page. Just log in)

Step4. Select the Blog you want to install it on then click “Add Widget”. This widget is automatically installed on you blog.

That’s it. So easy, right? I hope you will love it. If you have any issuse about it, please feel free to tell me. Thank you so much.

Share how to record your screen freeware

2010-10-12T20:47:00.000-07:00

This tool is CamStudio that is able to record your screen of desktop or laptop as a movie. It is very easy to use with clicking button. The recording file is AVI. You can convert avi format to swf as well.
More important things are that is totally free and portable version. You can have a copy on you usb and bring it anywhere. One thing I am not sure if you can use it on MAC os or Linux os.
You jsut download it and unzip it. That's it. Ah quite simple.
I hope it is useful for you. Enjoy fun!

Download link
CamStudio:CamStudio20.exe
New CamStudio 2.6beta (experts only):CamStudio_2.6b_r273_build_5thOct2010.exe
Lossless Codec:New CamStudioCodec1.4.zip CamStudioCodec14.exe
Support Forum: http://camstudio.org/forum
FAQ: http://camstudio.org/faq.htm

Share How to add MSN Messenger on your blog or website

2010-10-05T23:06:00.000-07:00

Recently I found that you could embed MSN Messenger into your blog or website, just for customer service, inquiry and technical support. It is real good function to close your customers side. I am going to tell you how to do that. It is not too difficult to add it on your website.
So let’s get started!

Step1. You must have MSN Massager account. (if no, just apply one) [Click here]

Step2. Sign in your account [Click here]
Step3. Create HTML code and choose style you like, you have three options.

Step4. Choose the size and theme

Step5. Copy the HTML and paste it into your blog or website

After that, your customers can chat with you. So pretty easy and cool. Just try it. If you don’t make it, please feel free to give me a comment. Thank you so much!

科技業的心酸-這家公司(WASIMO)不能待,請小心!

2010-10-05T21:43:00.000-07:00

[從台灣Yahoo轉載]http://tw.knowledge.yahoo.com/question/article?qid=1710072004859

大家好，這個消息是來自我的好友，那天和他吃完飯，才得知他的近況是如此的悲慘，以下是他的個人故事。他經由一個好心的主管推薦到一家芬蘭的電子儀器公司(未來在台灣設立公司)，老闆是日本人，公司的名字是WASIMO(http://www.wasimo.com/)，所應徵的職稱是軟體工程師，原本他和老婆已經在美國一段時間，一開始是利用網路語音面試，互有了解後，公司的老闆不希望他留在美國，若想要這份工作，必須回到台灣，雖然這間公司在台灣尚未成立，我的朋友夫妻二人初步評估就決定回到台灣，並放棄了美國的事情，接受這份"不合理"的工作。

如何不合理呢?工作的合約內容和他口頭答應的都完全不一致:

第1點-合約:不支付加班費，已包含於薪水。事實:每天從早上八點到晚上二點(這是平均時段)，最晚曾三天三夜沒睡。

第2點-合約:尊重台灣的休假方式。事實:每到假日，老闆就與我朋友視訊會議，每個週末都這樣搞。

第3點-合約:雙方都可以中止合約。事實:當我朋友提出離職時，離職原因是:生涯規劃。對方居然說若是這個原因的話，他不能接受，還語帶威脅的說，他的離職會造成公司的進度延遲，所造成的損失要我朋友負責。

第4點-合約:若有差旅費，公司會支付。事實:其實他一開始就騙了我朋友，因為他說會在台北內湖找個辦公司，我朋友就在內湖租了房子，最後他居然在桃園租了個公寓，要我朋友去那裡上班，所有的差旅費只費了二次，之後的他都不付了。

合約中有註明的他都可以不履行，更不用說合約沒註明的。
第1點-要求每餐要吃不同的外食，而且他不想搭計程車，都用走路的，有時都要走1個小時以上才找到。

第2點-要去機場接機和送機，就算是凌晨的班機時間，都一定要到。

第3點-他會不讓我朋友回台北的住所洗澡和休息。

第4點-當我朋友跟他報告進度或找一些零件時，向他回報，他居然告訴我朋友，他從來不相信任何人，除了他自己之外。

第5點-買了組合桌，他為了省計程車錢，我朋友居然要搬那個組合桌在下雨天，從桃園IKEA倉庫扛了四十幾分鐘的路程到他住的公寓。

第6點-因為我朋友的離職原因是生涯規劃，他說這不是理由，他說編謊告訴所有的同仁說我朋友是車禍然後斷了手，所以不能寫程式，這種人真的有夠賤。最後要談判時，我朋友就關機，不接他的電話，然後他傳訊息給他的老婆，並講一些威脅的話，後來，他們有出去協調，但他老闆並不覺得這樣子的工作要求有什麼不對，我朋友就告訴他，台灣人已經不是被日本人統制了，還告訴他，連最基本的信任都做不到，你沒有資格當人；他還還到處跟所有的代理商講我朋友健康有問題。

希望我朋友能提早脫離苦海；若有台灣的伙伴要到這家公司工作，自己要多加注意啦!

Share how to add google voice on your blog or website

2010-09-22T19:18:00.000-07:00

Here is video from google voice

You can allow others to call you from your website or blog by adding a google call widget to it. You visitors to the website can click the widget, enter their phone number, and Google Voice will call them and connect the call to your Google number. Here's how you can set up a google call widget. Just follow us and step by step:

Step1. Login google voice and Go to Settings.

Step2. Click the Call Widgets tab.

Step3. Click the Add a new Call Widget link.

Step4. Select the appropriate settings for your widget.

Step5. Click the Save Changes. Then, copy and paste the code in the 'Embed' field into your webpage, your blog, your auction or networking site, or anywhere you want.

Step6. If you want to add to your blogger, you have to loging you blogger and paste code to there(Layout->Page Elements->Add a Gadget->Basics->HTML/JavaScript).

PS: It is free within the continental US. All other calls are charged at the rates shown here(https://www.google.com/voice/rates).

Enjoy the hi-tech life and have fun.

Share how to Customise a skype button on your blog or website

2010-09-16T22:31:00.000-07:00

Skype buttons can be used on your website, blog or even in your email signature to let other people contact you easily. I am going to show you how to Customise your Skype buttons.
Let get started!

Step1. Go to Skepe website (http://www.skype.com/intl/en/tell-a-friend/wizard/)

Step2. Enter your Skype NameStep3. Customise your Skype button. If you choose to show your Skype status, your Skype button will always reflect your availability on Skype.

Step4. Copy & paste the code on your blog(If you have no idea how to paste the code on your blog, you can check my previous article)

I hope you will like my articles. Enjoy it.

Share how to add a skype button on your blog or website

2010-09-16T20:22:00.001-07:00

Skype buttons can be used on your website, blog or even in your email signature to let other people contact you easily. I am going to show you how to get it done easily. Just follow bellow step.
Let get started!

Step1. Go to Skepe website (http://www.skype.com/intl/en-us/tell-a-friend/get-a-skype-button/)

Step2. Enter your Skype Name
Step3. Select a button or Skype buttons with status. By the way, If you choose to show your Skype status, your Skype button will always reflect your availability on Skype. This status will be shown to everyone, whether they're in your contact list or not.

Step4. Preview your button and Copy the code

Step5. Login your blog

Step6. Go to your blog's DESIGN tab page.

Step7. hit "Add a Gadget", choose "HTML/Javescript". Paste your code and save it!

PS:You can choose your language on the left-bottom of skype website.

This function is kind of cool one to let your friends finding through blog or website.

Enjoy it!

Share how to See where people come from on the map

2010-09-13T22:14:00.000-07:00

Have you ever wonder online users at any time on you blog where they are from? It is really interesting to find out or have this function on your blog or websit. With the maps you get to see exactly where your site visitors are from - live! The maps update themselves on your site without having to reload the whole page. Here is the tip I wrote for you.
Follow the below steps. Let get started.

Step1. Go to whos.amung.us and build your own map.

Step2. Copy the code.

Step3. Login your blog

Step4. Go to your blog's DESIGN tab page.

Step5. hit "Add a Gadget", choose "HTML/Javescript".

Step6. Save it and view blog to check it out.

That's it. Add a map on your site today!

Enjoy the fun! Feel free to give me some comments, thank you very much!