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Lock, mutex, semaphore… what's the difference?
...so have read/write locks that allows either unlimited number of readers or 1 writer at any given time.
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How to make an Android Spinner with initial text “Select One”?
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What is the purpose of `text=auto` in `.gitattributes` file?
... in .gitattributes (or .git/info/attributes) file is of form:
pattern attr1 attr2 ...
So here, the pattern is *, which means all files, and the attribute is text=auto.
What does text=auto do? From the documentation:
When text is set to "auto", the path is marked for automatic end-of-line no...
Java 8 Streams: multiple filters vs. complex condition
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The code that has to be executed for both alternatives is so similar that you can’t predict ...
How to install a gem or update RubyGems if it fails with a permissions error
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You don't have write permissions into the /Library/Ruby/Gems/1.8 directory.
means exactly that, you don't have permission to write there.
That is the version of Ruby installed by Apple, for their own use. While it's OK to make minor modifications to that if you know what you're doin...
Different results with Java's digest versus external utilities
...of the Windows Calculator file. I am using Windows 7 Professional with SP1 . I have tried Java 6.0.29 and Java 7.0.03 . Can someone tell me why I am getting different hash values from Java versus (many!) external utilities and/or websites? Everything external matches with each other, only Ja...
Include an SVG (hosted on GitHub) in MarkDown
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The purpose of raw.github.com is to allow users to view the contents of a file, so for text bas...
What RSA key length should I use for my SSL certificates?
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As of 2020, RSA keys should be 2048 bits.
1024 bits
1024 bits RSA certificates are obsolete...
What's the best way to iterate an Android Cursor?
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