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recursion versus iteration
...rrect to say that everywhere recursion is used a for loop could be used? And if recursion is usually slower what is the technical reason for ever using it over for loop iteration?
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Why does ContentResolver.requestSync not trigger a sync?
...rn as discussed at Google IO - slide 26. My content provider is working, and my sync works when I trigger it from the Dev Tools Sync Tester application, however when I call ContentResolver.requestSync(account, authority, bundle) from my ContentProvider, my sync is never triggered.
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What is the volatile keyword useful for?
...trol whether some code continues a loop. The loop tests the volatile value and continues if it is true. The condition can be set to false by calling a "stop" method. The loop sees false and terminates when it tests the value after the stop method completes execution.
The book "Java Concurrency in P...
Convert .pem to .crt and .key
Can anyone tell me the correct way/command to extract/convert the certificate .crt and private key .key files from a .pem file? I just read they are interchangable, but not how.
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Encrypt & Decrypt using PyCrypto AES 256
...build two functions using PyCrypto that accept two parameters: the message and the key, and then encrypt/decrypt the message.
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Using SQL Server 2008 and SQL Server 2005 and date time
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Open your EDMX in a file editor (or “open with…” in Visual Studio and select XML Editor). At the top you will find the storage model and it has an attribute ProviderManifestToken. This has should have the value 2008. Change that to 2005, recompile and everything works.
NOTE: You'll have to...
What's a correct and good way to implement __hash__()?
What's a correct and good way to implement __hash__() ?
6 Answers
6
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What does in XML mean?
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CDATA stands for Character Data and it means that the data in between these strings includes data that could be interpreted as XML markup, but should not be.
The key differences between CDATA and comments are:
As Richard points ou...
Publish to S3 using Git?
...ing-jgit-to-publish-on-amazon-s3.html
Download jgit.sh, rename it to jgit and put it in your path (for example $HOME/bin).
Setup the .jgit config file and add the following (substituting your AWS keys):
$vim ~/.jgit
accesskey: aws access key
secretkey: aws secret access key
Note, by not specif...
Difference between rake db:migrate db:reset and db:schema:load
The difference between rake db:migrate and rake db:reset is pretty clear in my head. The thing which I don't understand is how rake db:schema:load different from the former two.
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