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Generating all permutations of a given string
...oid permutation(String prefix, String str) {
int n = str.length();
if (n == 0) System.out.println(prefix);
else {
for (int i = 0; i < n; i++)
permutation(prefix + str.charAt(i), str.substring(0, i) + str.substring(i+1, n));
}
}
(via Introduction to Programmin...
How to catch curl errors in PHP
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You can use the curl_error() function to detect if there was some error. For example:
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $your_url);
curl_setopt($ch, CURLOPT_FAILONERROR, true); // Required for HTTP error codes to be reported via our call to curl_error($ch)
...
Catching an exception while using a Python 'with' statement
...e, I can't figure out how to handle exception for python 'with' statement. If I have a code:
4 Answers
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How to run multiple .BAT files within a .BAT file
... backward compatibility therefore is the reason for this behaviour.
Tips
If your batch files have spaces in their names, use quotes around the name:
call "unit tests.bat"
By the way: if you do not have all the names of the batch files, you could also use for to do this (it does not guarantee th...
How do you test private methods with NUnit?
...ping" algorithm that happens in between the private and the public meaning if I were to Unit Test the public, it would actually be an integration test. In this scenario I think it trying to write the test points to a design problem in the code. in which case I should probably create a different clas...
How to check if an object is a certain type
...ssing various objects to a subroutine to run the same process but using a different object each time. For example, in one case I am using a ListView and in another case I am passing a DropDownList.
...
How do you log all events fired by an element in jQuery?
....log(e);
});
That will get you a lot (but not all) of the information on if an event is fired... other than manually coding it like this, I can't think of any other way to do that.
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How to get the filename without the extension in Java?
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If you, like me, would rather use some library code where they probably have thought of all special cases, such as what happens if you pass in null or dots in the path but not in the filename, you can use the following:
impo...
How do you calculate log base 2 in Java for integers?
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If you are thinking about using floating-point to help with integer arithmetics, you have to be careful.
I usually try to avoid FP calculations whenever possible.
Floating-point operations are not exact. You can never know ...
What are the possible values of the Hibernate hbm2ddl.auto configuration and what do they do
... I think it says "e.g." because it's just a community documentation, if someone's interested in all the possible values, it can be found in Hibernate's javadoc. (And yes, only those four options are present) docs.jboss.org/hibernate/orm/4.1/javadocs/org/hibernate/cfg/…
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