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The performance impact of using instanceof in Java
I am working on an application and one design approach involves extremely heavy use of the instanceof operator. While I know that OO design generally tries to avoid using instanceof , that is a different story and this question is purely related to performance. I was wondering if there is any per...
How to connect to SQL Server database from JavaScript in the browser?
Can anybody give me some sample source code showing how to connect to a SQL Server 2005 database from JavaScript locally? I am learning web programming on my desktop.
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How to make MySQL handle UTF-8 properly
One of the responses to a question I asked yesterday suggested that I should make sure my database can handle UTF-8 characters correctly. How I can do this with MySQL?
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Iterate through a HashMap [duplicate]
What's the best way to iterate over the items in a HashMap ?
7 Answers
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Deleting Files using Git/GitHub
First off, I'm new to Git.
4 Answers
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ASP.NET Web API OperationCanceledException when browser cancels the request
When a user loads a page, it makes one or more ajax requests, which hit ASP.NET Web API 2 controllers. If the user navigates to another page, before these ajax requests complete, the requests are canceled by the browser. Our ELMAH HttpModule then logs two errors for each canceled request:
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Refresh all files in buffer from disk in vim
The command to refresh a file from version on disk is :e!
5 Answers
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Difference between a clickable ImageView and ImageButton
I'm just wondering if there is any significant difference between an ImageView that's set to be clickable, compared with an ImageButton ?
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Unix shell script to truncate a large file
I am trying to write a Unix script which will truncate/empty a file which is continuously being written/open by an application when it reaches say 3GB of space. I know that the below command would do it :
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How to call a parent class function from derived class function?
How do I call the parent function from a derived class using C++? For example, I have a class called parent , and a class called child which is derived from parent. Within
each class there is a print function. In the definition of the child's print function I would like to make a call to the ...