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Is String.Format as efficient as StringBuilder
Suppose I have a stringbuilder in C# that does this:
12 Answers
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Design Patterns: Abstract Factory vs Factory Method
... need to be changed only the Simple Factory Class)
Factory Method
Contains one method to produce one type of product related to its type. (It is better than a Simple Factory because the type is deferred to a sub-class.)
Abstract Factory
Produces a Family of Types that are related. It is noti...
How to change MySQL data directory?
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Stop MySQL using the following command:
sudo /etc/init.d/mysql stop
Copy the existing data directory (default located in /var/lib/mysql) using the following command:
sudo cp -R -p /var/lib/mysql /newpath
edit the MySQL configuration f...
“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?
... skewness, and/or kurtosis of set of values, but that does NOT require storing all the values in memory at once?
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Force browser to download image files on click
I need the browser to download the image files just as it does while clicking on an Excel sheet.
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1030 Got error 28 from storage engine
I am working on a project where i need to create a database with 300 tables for each user who wants to see the demo application. it was working fine but today when i was testing with a new user to see a demo it showed me this error message
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Postgis installation: type “geometry” does not exist
I am trying to create table with Postgis. I do it by this page . But when I import postgis.sql file, I get a lot of errors:
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git pull aborted with error filename too long
I'm using Windows as my OS, and working on a project with a friend who's using a Mac. He checked in code to our Github.
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What is a mutex?
A mutex is a programming concept that is frequently used to solve multi-threading problems. My question to the community:
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How do I check if a list is empty?
For example, if passed the following:
27 Answers
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