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When should a class be Comparable and/or Comparator?
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The text below comes from Comparator vs Comparable
Comparable
A comparable object is capable of comparing itself with another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instanc...
String representation of an Enum
...one instance of each AuthenticationMethod the reference equality inherited from Object works fine.
– Jakub Šturc
Feb 26 '10 at 9:24
10
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Why does `True == False is False` evaluate to False? [duplicate]
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From the docs:
x < y <= z is equivalent to x < y and y <= z, except that y is
evaluated only once (but in both cases z is not evaluated at all when
x < y is found to be false).
In your case True == Fa...
Algorithm to detect corners of paper sheet in photo
...of a rush, so the code needs some errr...decoding...
I'll give a few tips from what I've seen you doing already, and then sort my code on my day off tomorrow.
First tip, OpenCV and python are awesome, move to them as soon as possible. :D
Instead of removing small objects and or noise, lower the c...
What is the difference between Class.getResource() and ClassLoader.getResource()?
... by running a stand-alone Java application that continuously loaded a file from disk using the getResourceAsStream ClassLoader method. I was able to edit the file, and the changes were reflected immediately, i.e., the file was reloaded from disk without caching.
However:
I'm working on a project w...
Difference between InvariantCulture and Ordinal string comparison
... the first difference. This sorts capitalized letters completely separate from the lowercase letters (and accented letters presumably separate from those), so capitalized words would sort nowhere near their lowercase equivalents.
InvariantCulture also considers capitals to be greater than lower ca...
What is the difference between char array and char pointer in C?
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Is something changed from 2012 to now. For a character array "s" prints entire array.. i.e., "hello"
– Bhanu Tez
May 9 '19 at 6:48
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Git Push Error: insufficient permission for adding an object to repository database
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For Ubuntu (or any Linux)
From project root,
cd .git/objects
ls -al
sudo chown -R yourname:yourgroup *
You can tell what yourname and yourgroup should be by looking at the permissions on the majority of the output from that ls -al command
Note: re...
How to delete the last n commits on Github and locally?
I'm trying to delete the last 2 commits from one of my GitHub repositories. I've tried as suggested here : git push -f origin HEAD^^:master . It seems that it works, as the last two commits are removed.
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How do I make an asynchronous GET request in PHP?
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Edit: One way to fire off a GET request and return immediately.
Quoted from http://petewarden.typepad.com/searchbrowser/2008/06/how-to-post-an.html
function curl_post_async($url, $params)
{
foreach ($params as $key => &$val) {
if (is_array($val)) $val = implode(',', $val);
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