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Conditional Variable vs Semaphore
When should one use a semaphore and when should one use a conditional variable (CondVar) ?
6 Answers
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Javascript/jQuery: Set Values (Selection) in a multiple Select
I have a multiple select:
8 Answers
8
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Linux - Install redis-cli only
I have a Linux server with Redis installed and I want to connect to it via command line from my local Linux machine.
12 Ans...
Showing a Spring transaction in log
I configured spring with transactional support. Is there any way to log transactions just to ensure I set up everything correctly? Showing in the log is a good way to see what is happening.
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How to find what code is run by a button or element in Chrome using Developer Tools
I'm using Chrome and my own website.
5 Answers
5
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How can I have grep not print out 'No such file or directory' errors?
I'm grepping through a large pile of code managed by git, and whenever I do a grep, I see piles and piles of messages of the form:
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Xcode 6: Keyboard does not show up in simulator
The keyboard does not show up when I run the simulator and click in the UITextView. How do I re-enable the keyboard?
13 Ans...
Physical vs. logical / soft delete of database record?
What is the advantage of doing a logical/soft delete of a record (i.e. setting a flag stating that the record is deleted) as opposed to actually or physically deleting the record?
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How can I determine whether a 2D Point is within a Polygon?
I'm trying to create a fast 2D point inside polygon algorithm, for use in hit-testing (e.g. Polygon.contains(p:Point) ). Suggestions for effective techniques would be appreciated.
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“PKIX path building failed” and “unable to find valid certification path to requested target”
I'm trying to get tweets using twitter4j library for my java project. On my first run I got an error about certificate sun.security.validator.ValidatorException and sun.security.provider.certpath.SunCertPathBuilderException . Then I added twitter certificate by:
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