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Archive for the ‘Tip’ Category

Issue

Final variable is used to define constant value and reference, and can only define once. In most cases, declaring a final variable is just a matter of assigning to a primitive value or a object reference directly.  However, in some cases, declaring a final class/instance variable may be more involving especially it get assigned from method that throws Exception (eg API for database access, web access), or it may involve multiple statements. In such cases, the code may become cluttered with class helper method and dummy temporary variable that help define final variable, making the code look less elegant and harder to maintain. The following common ways of declaring a final variable in those situations might look familiar to many.

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Introduction
image One major reason of Firefox’s success is due to its abundant of interesting and innovative extensions that improve upon FireFox’s capability to ways unimaginable. FireFox has to be the first popular browser that manages to attract the the developer community to voluntarily develop large number of free extensions which subsequently realize Marc Andreessen’s revelation about “browser as the operating system”. Users no longer prefer monolithic browser where they have to wait impatiently for next release for some cool features. Rather the users now prefer to use extensible browser like Firefox to allow them to be more productive and cool using wide range of free powerful extensions. This means no more waiting for cool features to be built because chance is that there is some extensions somewhere that able to do the job.

Fortunately, for developer who want to create cool extension, they can accelerate the development by learning and even reusing the source code of their favourite extensions. By and large, Firefox’s extensions is generally written in obfuscated JavaScript and bundle together with other files into a single container file with extension XPI. Unlike traditional Windows application where files are conveniently packaged into few “standardised” install files and extracted during installation, Firefox’s XPI extension is essentially a ZIP file that contains exactly the raw files of the extensions down to the directory structure.

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Introduction

image Are you growing fed-up and impatient when downloading a file that takes such a long time using broadband ? It make you wonder why isn’t the high-speed broadband making downloading any faster . Well, it turns out that it is none of the fault of the broadband and “partly” a fault of surfer for not using a special software called Download Accelerator. One might think it is a marketing ploy to say that Download Accelerator improves download speed a magnitude of times as it sounds too good to be true, even more with no cost at all. Magical as it sounds, Download Accelerator is no gimmick and illusion and in fact it works out of the box, and it should be used if you want to squeeze the last juice out of your broadband monthly bill.

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image This is great news for image users ! It seems that Vodpod developer finally answer the plea of the user by adding a feature to obtain the Vodpod’s Embed Code without forcing a posting.
Thank Vodpod for this great feature.

In the past, several cumbersome steps are required to obtain the Embed Code as highlighted in https://geekycoder.wordpress.com/2009/02/15/laymans-guide-to-embedding-flickr-slideshow-into-wordpresscom/. Now those steps are optional. This is a very valuable time-saving feature if one want to capture several widgets quickly, and not having to delete each “dummy” post thereafter.

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Note: This article is only applicable to those who have installed certain popular malware/anti-virus system, and are frustrated having to wait for Word 2007 to perform virus-scanning prior to open document file.

Yes, it can overwhelming frustrating and impatient to watch and wait for MS Word 2007 to virus-scan any open document. It is even more so when one is accessing frequently used document that is unlikely to be infected. The scanning waiting time is directly proportional to the size of the document and hence, opening many large documents can feel very intrusive and inefficient in the long run.

The good news is that Vista itself together with Window Defender does not perform any virus scanning in tandem with Word 2007. The bad news are that most users are probably be affected too because most computers, notebook and desktop alike from respectable vendors (eg HP, Lenova, Acer), are pre-installed some sort of malware/anti-virus system that by turn on by default, which force Word 2007 to virus-scan any open document.

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Ever since I restore Windows Vista from the image disc just 2 weeks ago, I face frequent annoying wireless disconnection. My last installation of Windows Vista based on the “image” disc did not exhibit the wireless problem as I’m facing in latest restore. I’m not sure if active Windows Update which patch Windows Vista constantly is the culprit for the wireless disconnection.

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Fixing FireFox’s recurring crash

Introduction

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Firefox is a outstanding web browser whose functionality can be easily extended by virtually unlimited myriad of innovative and exciting plug-ins and extensions. However, the poor programming of certain “add-ins” or even software conflict among them can affect the stability of Firefox and may cause repeated crash . Although the user can generally fix this issue by disabling the problematic “add-in”, there may be time where the problem continue to persist. In this case, the only way is to reinstall FireFox with the following notable steps.

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Problem: Crash still persist after FireFox reinstall

If after uninstalling and reinstalling Firefox, user still find that the crash persists, it means that Firefox is reusing previous configuration setting which may still load the problematic “add-in”. Note that FireFox does not overwrite previous configuration setting but rather reusing the exist configuration.

Solution: Remove Firefox in User’s directories prior to reinstallation

Prior to reinstalling FireFox, make sure its configuration and add-in directories are removed. The configuration and add-in directories do not reside in FireFox’s application directory but in the user’s own directory.

For Windows Vista, delete the following user’s directories which contains the plug-ins extensions and Firefox setting.

[Drive]:\Users\[userName]\AppData\Local\Mozilla
[Drive]:\Users\[userName]\AppData\Roaming\Mozilla

After reinstallation, user can then operate over the “clean” state of FireFox.

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