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When is SQLiteOpenHelper onCreate() / onUpgrade() run?
...eOpenHelper versions the database files. The version number is the int argument passed to the constructor. In the database file, the version number is stored in PRAGMA user_version.
onCreate() is only run when the database file did not exist and was just created. If onCreate() returns successfully ...
How do I close a connection early?
...ntent-Length: $size");
ob_end_flush();
flush();
sleep(13);
error_log("do something in the background");
?>
Which works fine until you substitute phpinfo() for echo('text I want user to see'); in which case the headers are never sent!
The solution is to explicitly turn off output buffer...
Force Screen On
...event the device from sleeping? If so, the commonness of WAKE_LOCK strikes me as a shocking mistake!
– Michael Cramer
Jan 25 '10 at 18:52
32
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Why is Double.MIN_VALUE in not negative
Can anyone shed some light on why Double.MIN_VALUE is not actually the minimum value that Doubles can take? It is a positive value, and a Double can of course be negative.
...
MySQL Insert into multiple tables? (Database normalization?)
... tried searching a way to insert information in multiple tables in the same query, but found out it's impossible?
So I want to insert it by simply using multiple queries i.e;
...
Difference between /res and /assets directories
...ow, in general, when it's best to use one and the other.
Can anyone help me in knowing the real differences between res and assets?
...
How to convert ActiveRecord results into an array of hashes
...
as_json
You should use as_json method which converts ActiveRecord objects to Ruby Hashes despite its name
tasks_records = TaskStoreStatus.all
tasks_records = tasks_records.as_json
# You can now add new records and return the result as json by calling `to...
Is it possible for a unit test to assert that a method calls sys.exit()
I have a python 2.7 method that sometimes calls
4 Answers
4
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What is “overhead”?
...t in Computer Science and I am hearing the word "overhead" a lot when it comes to programs and sorts. What does this mean exactly?
...
What does java.lang.Thread.interrupt() do?
...get thread MAY poll the interrupted status and handle it appropriately. Some methods that block such as Object.wait() may consume the interrupted status immediately and throw an appropriate exception (usually InterruptedException)
Interruption in Java is not pre-emptive. Put another way both thre...