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How do you add swap to an EC2 instance?
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That dd command line means "copy from /dev/zero to /var/swap.1. Do that by reading 1024 blocks of size 1 megabyte". It's a quick way to create a 1GB file full of zeroes.
– Nelson
Jan 21 '15 at 4:43
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Why should a Java class implement comparable?
...t<Author> listAuthors(){
List<Author> authors = readAuthorsFromFileOrSomething();
Collections.sort(authors);
return authors;
}
/**
* List unique authors. Sort them by name so it will look good.
*/
public SortedSet<Author> listUniqueAuthors(){
List<Author> a...
How to print a string in fixed width?
...lly posted as an edit to @0x90's answer, but it got rejected for deviating from the post's original intent and recommended to post as a comment or answer, so I'm including the short write-up here.
In addition to the answer from @0x90, the syntax can be made more flexible, by using a variable for th...
read subprocess stdout line by line
...lity.py'],stdout=subprocess.PIPE)
I have needed this when calling python from within python.
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How do I get a reference to the app delegate in Swift?
... explain what setRoot() does and when to call it. e.g. is it ok to call it from a ViewController? From a Unit test where window is not set yet? More context would be great.
– Houman
Dec 24 '19 at 16:52
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Detect current device with UI_USER_INTERFACE_IDIOM() in Swift
...estFlight. Strangely, it works when the app is uploaded directly to device from X-Code. I've also hit this bug.
– Zmey
May 31 '15 at 7:55
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Junit: splitting integration test and Unit tests
I've inherited a load of Junit test, but these tests (apart from most not working) are a mixture of actual unit test and integration tests (requiring external systems, db etc).
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Calculate the execution time of a method
I have an I/O time-taking method which copies data from a location to another. What's the best and most real way of calculating the execution time? Thread ? Timer ? Stopwatch ? Any other solution? I want the most exact one, and briefest as much as possible.
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What are the differences between ipython and bpython?
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A whole parallel programming environment (not really a feature you expect from an interactive Python shell, but IPython offers it).
This list could be nearly arbitrarily continued. And of course there will be lots of features in bpython lacking from IPython, but you did not ask for those.
So ju...
How can I check the syntax of Python script without executing it?
.... Which is good practice anyway. I've even adopted this for shell scripts. From here it's a small step to unit testing.
– Henk Langeveld
Aug 10 '12 at 12:07
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