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In Ruby how do I generate a long string of repeated text?
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Why is the order important with Ruby? When I do 99999 * "0" I get TypeError: String can't be coerced into Fixnum
– Steven
Jan 14 '17 at 22:30
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What characters are forbidden in Windows and Linux directory names?
...ot create a folder named A if one named a already exists. Worse, seemingly-allowed names like PRN and CON, and many others, are reserved and not allowed. Windows also has several length restrictions; a filename valid in one folder may become invalid if moved to another folder. The rules for
naming f...
Differences between SP initiated SSO and IDP initiated SSO
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Java8 Lambdas vs Anonymous classes
... been recently released and its brand new lambda expressions looks to be really cool, I was wondering if this means the demise of the Anonymous classes that we were so used to.
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Difference between ProcessBuilder and Runtime.exec()
...me().exec(...) does NOT invoke a shell unless that is explicitly specified by the command. That is a good thing regarding the recent "Shellshock" bug issue. This answer is misleading, because it states that cmd.exe or equivalent (i.e. /bin/bash on unix) would be run, which does not seem to be the ca...
Bash foreach loop
... input runs the cat program with the input lines as argument(s).
If you really want to do this in a loop, you can:
for fn in `cat filenames.txt`; do
echo "the next file is $fn"
cat $fn
done
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Calculating the difference between two Java date instances
...SECONDS=40, MILLISECONDS=0, MICROSECONDS=0, NANOSECONDS=0}, with the units ordered.
You just have to convert that map to an user-friendly string.
Warning
The above code snippets compute a simple diff between 2 instants. It can cause problems during a daylight saving switch, like explained in th...
What is the most efficient Java Collections library? [closed]
...ding a lot of functionality over the normal collections in the JDK.
Personally (and I'm biased) I love Guava (including the former Google Java Collections project). It makes various tasks (including collections) a lot easier, in a way which is at least reasonably efficient. Given that collection op...
vertical & horizontal lines in matplotlib
...blem for new users of Matplotlib to draw vertical and horizontal lines. In order to understand this problem, you should be aware that different coordinate systems exist in Matplotlib.
The method axhline and axvline are used to draw lines at the axes coordinate. In this coordinate system, coordinat...
Showing empty view when ListView is empty
... when the ListView is not empty. I thought the ListView would automatically detect when to show the empty view.
11 Answ...