Daqing Chu At WordPress

April 27, 2011

My StackOverflow Reputation Over 2K

Filed under: Programming Notes — David Chu @ 4:54 am
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Finally today My SO reputation points are over 2K, 2008. It is a lucky number. Actually, I have not actively raised or answered any questions recently. I just keep checking my SO site and watching some questions there. That’s why my points grow very slow.

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April 20, 2011

iTunes 10.2.2 Update

Filed under: Programming Notes — David Chu @ 12:27 am

Quickly I got this update: iTunes 10.2.2.

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April 18, 2011

Safari(5.0.5) and Security(2011-2) Update

Filed under: Life with Mac — David Chu @ 3:37 am
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It has been for quite while not seeing updates. Today I did the following two updates.

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April 17, 2011

Why is DI important?

Filed under: Programming Notes — David Chu @ 8:02 pm
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In the past week, I was asked by this question. Most people use OO strategy to write their codes. Each class or object has its encapsulated private data member and methods. They do try to separate business logic clear and narrow down only the jobs the class cares. What is Dependency Injection(DI) and why do we use DI?

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April 10, 2011

Two Useful Excel Functions

Filed under: Programming Notes — David Chu @ 10:18 pm
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I often use Excel as a tool for some tests or data analysis. For example, last week I tried to comparing two columns in data base to see their difference. I found out that I had an Excel as a tool to do that. This file contains some formula for column comparison. Here is summary what I did for my future reference.

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April 3, 2011

Broken MSCOMRT2.OCX Caused Excel Add-in Exception

Filed under: Programming Notes — David Chu @ 1:40 am
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Last week I spent almost two days to resolve one issue. Excel add-in throw exceptions after an enterprise application update was installed. This happened initially in a product our team supports. The product is from a third party application suite by company C, where one Excel add-in is part of.

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