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How to read all files in a folder from Java?
... concern is efficiency, is it fast enough to be used for systems with thousands of files or is there a better alternative?
– Nitin Labhishetty
Mar 10 '14 at 15:28
17
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What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
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I did some benchmarks to see what's the fastest way and these are my results and conclusions. I ran each method 10M times and added a comment with the average time per run.
If your input milliseconds are not limited to one day (your result may be 143:59:59.999), these are the...
Insert new item in array on any position in PHP
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@SunilPachlangia, adelval and others: with multi-dimensional arrays you need to wrap the replacement in an array, it's documented. I still brought the note here so people stop doing the mistake.
– Félix Gagnon-Grenier
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Disable output buffering
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# reopen stdout file descriptor with write mode
# and 0 as the buffer size (unbuffered)
import io, os, sys
try:
# Python 3, open as binary, then wrap in a TextIOWrapper with write-through.
sys.stdout = io.TextIOWrapper(open(sys.stdout.fileno(), 'wb', 0), write_throug...
How to check that a string is an int, but not a double, etc.?
...o an integer. However I want to check that the string is an integer beforehand, so that I can give a helpful error message to the user if it's wrong. PHP has is_int() , but that returns false for string like "2" .
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Get the client IP address using PHP [duplicate]
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The below both functions are equivalent with the difference only in how and from where the values are retrieved.
getenv() is used to get the value of an environment variable in PHP.
// Function to get the client IP address
function get_client_ip() {
$ipaddress = '';
if (getenv('HTTP_CLI...
How to convert object array to string array in Java
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only on Java 1.6 and above
– newacct
Jul 5 '09 at 9:53
10
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Pandas - How to flatten a hierarchical index in columns
... answered Jan 24 '13 at 18:37
Andy HaydenAndy Hayden
262k7373 gold badges527527 silver badges485485 bronze badges
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How to find out if a file exists in C# / .NET?
...xists BUT caller lacks permission to read it. Is there a different way to handle this kind of situations and check whether a file exists even if the caller cannot read it?
– ADTC
Mar 5 '12 at 8:06
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What is the opposite of 'parse'? [closed]
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err.. why not ToString() ? Seems to be the standard set by the likes of Int32, etc
– Joseph Kingry
Oct 20 '09 at 20:06
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