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How to detect shake event with android?
...quire a SensorManager:
sensorMgr = (SensorManager) getSystemService(SENSOR_SERVICE);
And register this sensor with desired flags:
sensorMgr.registerListener(this,
SensorManager.SENSOR_ACCELEROMETER,
SensorManager.SENSOR_DELAY_GAME);
In your onSensorChange() method, you determine whether it’s...
How to validate IP address in Python? [duplicate]
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Don't parse it. Just ask.
import socket
try:
socket.inet_aton(addr)
# legal
except socket.error:
# Not legal
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Where does PostgreSQL store the database?
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To see where the data directory is, use this query.
show data_directory;
To see all the run-time parameters, use
show all;
You can create tablespaces to store database objects in other parts of the filesystem. To see tablespaces, which might not be in that data directory, use this...
From io.Reader to string in Go
...
data, _ := ioutil.ReadAll(response.Body)
fmt.Println(string(data))
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What is the proper #include for the function 'sleep()'?
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this is what I use for a cross-platform code:
#ifdef _WIN32
#include <Windows.h>
#else
#include <unistd.h>
#endif
int main()
{
pollingDelay = 100
//do stuff
//sleep:
#ifdef _WIN32
Sleep(pollingDelay);
#else
usleep(pollingDelay*1000); /* sleep for 10...
SVN command to delete all locally missing files
...bbling in PowerShell, this one-liner will do the trick:
svn status | ? { $_ -match '^!\s+(.*)' } | % { svn rm $Matches[1] }
That is, filter the output to only those lines showing missing files (denoted by an exclamation at the start of the line), capture the associated file name, and perform an s...
Loading and parsing a JSON file with multiple JSON objects
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@Pi_: you'll have a dictionary, so just access the fields as keys: data = json.loads(line); print data[u'votes']
– Martijn Pieters♦
Sep 16 '12 at 23:26
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Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.10:test
... Java 8 so they were failing. My error was resolved after changing jdk1.8.0_92 to jdk1.7.0_80.
The build would succeed with mvn clean install -DskipTests but this will skip the unit tests. So just ensure that you run then separately after the build is complete.
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postgresql - replace all instances of a string within text field
...ing-to-string replacement, so 'category' will become 'dogegory'. the regexp_replace function may help you define a stricter match pattern for what you want to replace.
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difference between collection route and member route in ruby on rails?
...st, not the collection of votes being created.The named path would be posts_votes_url, for example.
– George Shaw
Feb 21 '14 at 6:10
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