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What order are the Junit @Before/@After called?
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15
To be clear, the order-of-execution of all the @Before methods is not guaranteed. If there are 10 @Before methods, each of them can be execu...
How do you run a crontab in Cygwin on Windows?
... yourself...
– user3338098
Apr 27 '15 at 21:43
and the -n option of cygwin's cron is equally meaningless as no matter ...
How to elegantly rename all keys in a hash in Ruby? [duplicate]
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Jörg W MittagJörg W Mittag
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...
iPhone: Detecting user inactivity/idle time since last screen touch
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153
Here's the answer I had been looking for:
Have your application delegate subclass UIApplicatio...
Java Class.cast() vs. cast operator
...s of the C-style cast operator I was pleased at first to find that in Java 5 java.lang.Class had acquired a cast method.
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How can I convert an RGB image into grayscale in Python?
...e('greyscale.png')
Using matplotlib and the formula
Y' = 0.2989 R + 0.5870 G + 0.1140 B
you could do:
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.image as mpimg
def rgb2gray(rgb):
return np.dot(rgb[...,:3], [0.2989, 0.5870, 0.1140])
img = mpimg.imread('image.p...
How to correctly use the extern keyword in C
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295
"extern" changes the linkage. With the keyword, the function / variable is assumed to be availab...
Boolean method naming readability
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answered Oct 14 '09 at 14:45
MartinMartin
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How to hide action bar before activity is created, and then show it again?
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335
Setting android:windowActionBar="false" truly disables the ActionBar but then, as you say, getAc...
How to properly import a selfsigned certificate into Java keystore that is available to all Java app
...amplecert.crt
Optionally verify the certificate information:
$ openssl x509 -in /tmp/examplecert.crt -text
Import the certificate into the Java cacerts keystore:
$ keytool -import -trustcacerts -keystore /opt/java/jre/lib/security/cacerts \
-storepass changeit -noprompt -alias mycert -file ...