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Detect if Android device has Internet connection
...e() == 200);
} catch (IOException e) {
Log.e(LOG_TAG, "Error checking internet connection", e);
}
} else {
Log.d(LOG_TAG, "No network available!");
}
return false;
}
Of course you can substitute the http://www.google.com URL for any other server you ...
How to get Maven project version to the bash command line
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[ERROR] Failed to execute goal org.codehaus.mojo:exec-maven-plugin:1.3.2:exec (default-cli) on project audit-events-processor-parent: Command execution failed. Cannot run program "maven" (in directory "/tmp"): error=2, No such...
Proper way to make HTML nested list?
...the <li> it belongs in.
If you validate, option 1 comes up as an error in html 5 -- credit: user3272456
Correct: <ul> as child of <li>
The proper way to make HTML nested list is with the nested <ul> as a child of the <li> to which it belongs. The nested list s...
Responsive website zoomed out to full width on mobile
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Adding this for people searching this error for whom the accepted answer is not working. I believe this will be a rarer, but nonetheless frustrating case:
If your page is rendering inside a frameset (for example domain cloaking), then putting the meta tags won'...
Avoid web.config inheritance in child web application using inheritInChildApplications
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I get this error "The configuration section 'configSections' cannot be read because it is missing a section declaration " in my parents web.config file.
– Blankman
Apr 23 '09 at 15:37
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What is the (best) way to manage permissions for Docker shared volumes?
I've been playing around with Docker for a while and keep on finding the same issue when dealing with persistent data.
13 A...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...ch other; one of them successfully INSERTs; the other gets a duplicate key error and does an UPDATE instead. The UPDATE blocks waiting for the INSERT to rollback or commit. When it rolls back, the UPDATE condition re-check matches zero rows, so even though the UPDATE commits it hasn't actually done ...
Debugging WebSocket in Google Chrome
... and then you can see the Frames (now called Messages) which will show you error messages etc.
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How dangerous is it to access an array out of bounds?
...hings happen on computers I've used (corrupted files, unrecoverable system errors, etc.), and I have no idea how many of them might have been caused by some C program exhibiting the dreaded undefined behavior. (So far no actual demons have flown out of my nose.)
– Keith Thompso...
Convert RGBA PNG to RGB with PIL
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This code was causing a error for me: tuple index out of range. I fixed this by following another question(stackoverflow.com/questions/1962795/…). I had to convert the PNG to RGBA first and then slice it: alpha = img.split()[-1] then use that on t...