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How do you set, clear, and toggle a single bit?
How do you set, clear, and toggle a bit?
30 Answers
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Select N random elements from a List in C#
I need a quick algorithm to select 5 random elements from a generic list. For example, I'd like to get 5 random elements from a List<string> .
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Returning from a finally block in Java
I was surprised recently to find that it's possible to have a return statement in a finally block in Java.
6 Answers
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How can you find out which process is listening on a port on Windows?
How can you find out which process is listening on a port on Windows?
31 Answers
31
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Getting the ID of the element that fired an event
Is there any way to get the ID of the element that fires an event?
22 Answers
22
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Project structure for Google App Engine
I started an application in Google App Engine right when it came out, to play with the technology and work on a pet project that I had been thinking about for a long time but never gotten around to starting. The result is BowlSK . However, as it has grown, and features have been added, it has got...
How do I position one image on top of another in HTML?
I'm a beginner at rails programming, attempting to show many images on a page. Some images are to lay on top of others. To make it simple, say I want a blue square, with a red square in the upper right corner of the blue square (but not tight in the corner). I am trying to avoid compositing (with...
Database Design for Tagging
How would you design a database to support the following tagging features:
12 Answers
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keep rsync from removing unfinished source files
I have two machines, speed and mass. speed has a fast Internet connection and is running a crawler which downloads a lot of files to disk. mass has a lot of disk space. I want to move the files from speed to mass after they're done downloading. Ideally, I'd just run:
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How do I create a foreign key in SQL Server?
I have never "hand-coded" object creation code for SQL Server and foreign key decleration is seemingly different between SQL Server and Postgres. Here is my sql so far:
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