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What's wrong with using == to compare floats in Java?
...urrentSectionID) < epsilon)
where epsilon is a very small number like 0.00000001, depending on the desired precision.
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Count occurrences of a char in plain text file
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edited Oct 21 '09 at 21:45
answered Oct 21 '09 at 21:37
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“aapt” IOException error=2, No such file or directory" why can't I build my gradle on jenkins?
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I had the following similar error on Ubuntu 13.10:
Cannot run program "/usr/local/android-sdk-linux/build-tools/19.0.3/aapt": error=2, No such file or directory
And this answer fixed it for me:
To get aapt working (this fixed my issues with the avd as well) just inst...
How to format a Java string with leading zero?
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In case you have to do it without the help of a library:
("00000000" + "Apple").substring("Apple".length())
(Works, as long as your String isn't longer than 8 chars.)
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Testing whether a value is odd or even
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Use modulus:
function isEven(n) {
return n % 2 == 0;
}
function isOdd(n) {
return Math.abs(n % 2) == 1;
}
You can check that any value in Javascript can be coerced to a number with:
Number.isFinite(parseFloat(n))
This check should preferably be done outside the isEv...
Bash set +x without it being printed
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10
Great answer, just a note: without a semicolon after the command this won't work; and with a semicolon but without spaces to the braces, a s...
How to convert a negative number to positive?
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edited Oct 5 '10 at 23:28
answered Oct 4 '10 at 10:26
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Get Folder Size from Windows Command Line
...d up sizes recursively (the following is a batch file):
@echo off
set size=0
for /r %%x in (folder\*) do set /a size+=%%~zx
echo %size% Bytes
However, this has several problems because cmd is limited to 32-bit signed integer arithmetic. So it will get sizes above 2 GiB wrong1. Furthermore it will l...
How to refer environment variable in POM.xml?
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rogerdpack
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answered May 5 '12 at 15:11
Andrew WhiteAndre...
c# datatable insert column at position 0
...oes anyone know the best way to insert a column in a datatable at position 0?
3 Answers
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