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How to create a CPU spike with a bash command
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Reading from /dev/zero and writing to /dev/null is not a very good load generator - you have to run a lot of them to generate significant load. Better to do something like dd if=/dev/urandom | bzip2 -9 >> /dev/null. /dev/urand...
String replacement in java, similar to a velocity template
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Use StringSubstitutor from Apache Commons Text.
https://commons.apache.org/proper/commons-text/
It will do it for you (and its open source...)
Map<String, String> valuesMap = new HashMap<String, String>();
valuesMap.put("animal", ...
How to set commands output as a variable in a batch file
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+Santiago Villafuerte: yes, if you're running from a batch file, but if you want to run it from the command line yourself (for example: to test it before putting it in the batch file) then you use a single %.
– Brent Rittenhouse
Oct...
Android TextView Justify Text
... to seal.io/2010/12/only-way-how-to-align-text-in-block-in.html. (Stole from stackoverflow.com/questions/5976627/…)
– jcaruso
May 17 '13 at 21:57
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What does (x ^ 0x1) != 0 mean?
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@supercat: When a conversion from floating-point to integer is called for, the conversion is implicit (doesn't require cast syntax). But no conversion is triggered by bitwise operators, they simply fail for floating-point types.
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Why is a 3-way merge advantageous over a 2-way merge?
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This slide from a perforce presentation is interesting:
The essential logic of a three-way merge tool is simple:
Compare base, source, and target files
Identify the "chunks" in the source and target files file:
C...
Calculate the center point of multiple latitude/longitude coordinate pairs
...ach of just averaging them has weird edge cases with angles when they wrap from 359' back to 0'.
A much earlier question on SO asked about finding the average of a set of compass angles.
An expansion of the approach recommended there for spherical coordinates would be:
Convert each lat/long pair...
Case Insensitive Flask-SQLAlchemy Query
I'm using Flask-SQLAlchemy to query from a database of users; however, while
3 Answers
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How to set specific java version to Maven
...AVA_HOME parameter to find which Java version it is supposed to run. I see from your comment that you can't change that in the configuration.
You can set the JAVA_HOME parameter just before you start maven (and change it back afterwards if need be).
You could also go into your mvn(non-windows)/m...
Find out whether Chrome console is open
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console.profiles (2013)
Update: console.profiles has been removed from Chrome. This solution no longer works.
Thanks to Paul Irish for pointing out this solution from Discover DevTools, using the profiler:
function isInspectOpen() {
console.profile();
console.profileEnd();
if (con...