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Why does InetAddress.isReachable return false, when I can ping the IP address?
...privileges to perform the check. Probably due to use of ports in the lower range. If you run your java program with sudo/superuser, I'll bet it works.
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Convert a 1D array to a 2D array in numpy
...esize function and mixing it with np.reshape, such as
>>> a =np.arange(9)
>>> np.resize(a, 10).reshape(5,2)
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How are parameters sent in an HTTP POST request?
... is multipart/form-data if you use file uploads. But it could be anything, ranging from text/plain, over application/json or even a custom application/octet-stream.
In any case, if a POST request is made with a Content-Type which cannot be handled by the application, it should return a 415 status-c...
How do I drop table variables in SQL-Server? Should I even do this?
...scope rules as int or varchar variables
The scope of a variable is the range of Transact-SQL statements that can reference the variable. The scope of a variable lasts from the point it is declared until the end of the batch or stored procedure in which it is declared.
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Selecting with complex criteria from pandas.DataFrame
...mport randint
>>> df = pd.DataFrame({'A': [randint(1, 9) for x in range(10)],
'B': [randint(1, 9)*10 for x in range(10)],
'C': [randint(1, 9)*100 for x in range(10)]})
>>> df
A B C
0 9 40 300
1 9 70 700
2 5 70 900
3 8 80 900...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
..._LONG = 414;
const HTTP_UNSUPPORTED_MEDIA_TYPE = 415;
const HTTP_REQUESTED_RANGE_NOT_SATISFIABLE = 416;
const HTTP_EXPECTATION_FAILED = 417;
const HTTP_I_AM_A_TEAPOT = 418; // RFC2324
const HTTP_MISDIRECTED_REQUEST = 421; ...
Best way to store time (hh:mm) in a database
...he second 4 bytes. (SmallDateTime uses 2 bytes for each with narrower date range, and minutes, rather than milliseconds for time)
– Kristen
Feb 14 '09 at 18:19
What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
...ving to resort to all sorts of workarounds to make your app work in a wide range of devices. It's really frustrating!
Your class is great, for it allows you to keep working in new APIs wih preferences the way it used to be, but it's not backward compatible. Since I'm trying to reach a wide range of...
Differences between Perl and PHP [closed]
...uote-like (qw, qx &c.), exponentiation (**), string repetition (x) and range (.. and ...). PHP has a few operators Perl doesn't, such as the error suppression operator (@), instanceof (though Perl does have the Universal::isa method) and clone.
In PHP, new is an operator. In Perl, it's the conv...
Easy way to test a URL for 404 in PHP?
...08 Jan 2003 23:11:55 GMT
[ETag] => "3f80f-1b6-3e1cb03b"
[Accept-Ranges] => bytes
[Content-Length] => 438
[Connection] => close
[Content-Type] => text/html
)
Therefore you could just check to see that the header response was OK eg:
$headers = get_headers($url, 1)...