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How do you determine the ideal buffer size when using FileInputStream?
...gest (a hash) from a file, and I need to do this to a lot of files (>= 100,000). How big should I make the buffer used to read from the files to maximize performance?
...
How do I grab an INI value within a shell script?
...param3=678
[section2]
param1=abc
param2=def
param3=ghi
[section3]
param1=000
param2=111
param3=222
Say you want param2 from section2. Run the following:
sed -nr "/^\[section2\]/ { :l /^param2[ ]*=/ { s/.*=[ ]*//; p; q;}; n; b l;}" ./file.ini
will give you
def
...
Singleton with Arguments in Java
... should use regular, non-singleton classes instead (for example needing 10.000 differently parametrized singleton).
Here is an example for such store:
public final class UsefulObjFactory {
private static Map<Integer, UsefulObj> store =
new HashMap<Integer, UsefulObj>();
...
Is there a way to use two CSS3 box shadows on one element?
...n comma-separate shadows:
box-shadow: inset 0 2px 0px #dcffa6, 0 2px 5px #000;
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Colspan/Rowspan for elements whose display is set to table-cell
...answered Aug 27 '13 at 21:04
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How to assert output with nosetest/unittest in python?
...-----------------------------------------------------
#Ran 1 test in 0.000s
#
#OK
assert not hasattr(sys.stdout, "getvalue")
unittest.main(module=__name__, buffer=False)
#hello world!
#F
#======================================================================
#FAI...
Efficient way to determine number of digits in an integer
...turn 10 + 1;
if (x < 0) return numDigits(-x) + 1;
if (x >= 10000) {
if (x >= 10000000) {
if (x >= 100000000) {
if (x >= 1000000000)
return 10;
return 9;
}
return 8;
}
...
How do I use boolean variables in Perl?
...lse:
undef - the undefined value
0 the number 0, even if you write it as 000 or 0.0
'' the empty string.
'0' the string that contains a single 0 digit.
All other scalar values, including the following are true:
1 any non-0 number
' ' the string with a space in it
'00' two or more 0 characters ...
Converting Select results into Insert script - SQL Server [closed]
...es individual insert commands instead of doing a proper bulk insert (say 1,000 items per insert) like it should . This can take forever to run on really large result sets
– Traderhut Games
Sep 18 '19 at 18:15
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Is there a way to break a list into columns?
...o - well, the Columnizer code sure has more options, since it's almost a 1,000 lines of code, compared to mine which is about a 120 lines.. but does the job well
– vsync
Oct 23 '17 at 7:37