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How do you run a crontab in Cygwin on Windows?
...nistrator". In cmd prompt:
cd <directory_where_i_forgot_the setup-x86_64.exe> cygwin installer:
set package_name=cygrunsrv cron
setup-x86_64.exe -n -q -s http://cygwin.mirror.constant.com -P %package_name%
Ensure the installer does not throw any errors in the prompt ... If it has - you p...
List of ANSI color escape sequences
... Thanks for the edit, I fixed it. Sadly, links die and link-based answers like this one are bound to rot. Would not create answers like this anymore -- but keeping this one as it still mostly works as expected. :-)
– Palec
Jul 20 at 12:06
...
Calculate MD5 checksum for a file
...are the results afterwards is up to you; you can convert the byte array to base64 for example, or compare the bytes directly. (Just be aware that arrays don't override Equals. Using base64 is simpler to get right, but slightly less efficient if you're really only interested in comparing the hashes.)...
地图组件（高德地图） · App Inventor 2 中文网
...GeoJSON 解析为 (键, 值) 对的 特征 列表。
失败时，将触发 加载出错 事件，并返回通用的 HTTP 响应代码和错误消息。
平移并缩放(纬度,经度,缩放)
将地图中心平移至给定的经纬度，并将缩放级别调...
How to assign colors to categorical variables in ggplot2 that have stable mapping?
...
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] methods stats graphics grDevices utils datasets base
other attached packages:
[1] ggplot2_0.9.3.1
loaded via a namespace (and not attached):
[1] colorspace_1.2-4 dichromat_2.0-0 dig...
How to create a windows service from java app
...
@Vladimir tanuki wrapper is no longer open sourced for 64bit arch
– gerrytan
Jul 3 '14 at 23:31
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show 1 more comment
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Convert integer to hexadecimal and back again
...the hex equivalent. HEX is not a terrible solution for this problem, but a base64 of the four bytes in the int would be even shorter (and you could trim the padding)
– James Hart
Aug 16 '11 at 21:08
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Lombok is not generating getter and setter
I just tried to send a Maven-based project to another computer and HORROR,
red markers everywhere!!
20 Answers
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Java equivalent of unsigned long long?
In C++, I enjoyed having access to a 64 bit unsigned integer, via unsigned long long int , or via uint64_t . Now, in Java longs are 64 bits, I know. However, they are signed.
...
How do I get the row count of a pandas DataFrame?
...eturn non-NaN counts for each column:
df.count()
A 5
B 3
dtype: int64
For Series, use Series.count to similar effect:
s.count()
# 3
Group-wise Row Count: GroupBy.size
For DataFrames, use DataFrameGroupBy.size to count the number of rows per group.
df.groupby('A').size()
A
a 2
b ...