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Calling Java varargs method with single null argument?
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A Test Case to illustrate this:
The Java code with a vararg-taking method declaration (which happens to be static):
public class JavaReceiver {
public static String receive(String... x) {
String res = ((x == null)...
Search for executable files using find command
...tical to the -executable predicate in GNU find. In particular, -executable tests that the file can be executed by the current user, while -perm +111 just tests if any execute permissions are set.
Older versions of GNU find also support the -perm +111 syntax, but as of 4.5.12 this syntax is no longe...
Need some clarification about beta/alpha testing on the developer console
...Four types of releases on play console for android developers;
1. Internal testing - It means you wanna share your app among the decided members. It means you have to put their Gmail into the testers list. This is usually for employees.
2. Alpha testing - Same as internal testing, but this time you ...
Swift - encode URL
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Swift 3
In Swift 3 there is addingPercentEncoding
let originalString = "test/test"
let escapedString = originalString.addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)
print(escapedString!)
Output:
test%2Ftest
Swift 1
In iOS 7 and above there is stringByAddingPercentEncodingW...
How to create the most compact mapping n → isprime(n) up to a limit N?
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There are many ways to do the primality test.
There isn't really a data structure for you to query. If you have lots of numbers to test, you should probably run a probabilistic test since those are faster, and then follow it up with a deterministic test to make su...
`testl` eax against eax?
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It tests whether eax is 0, or above, or below. In this case, the jump is taken if eax is 0.
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Merge two (or more) lists into one, in C# .NET
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@MarcCliment: Well for one thing, in your tests you're not creating the list with the correct final size - whereas the code in my answer does. Do that, and the 10000*10000 test is faster using AddRange, at least - although other results are inconsistent. (You should ...
Test if a variable is set in bash when using “set -o nounset”
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echo 'empty but defined'
else
echo 'unset'
fi
}
Test:
$ unset WHATEVER
$ check
unset
$ WHATEVER=
$ check
empty but defined
$ WHATEVER=' '
$ check
not empty
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How to use if-else option in JSTL
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Yes, but it's clunky as hell, e.g.
<c:choose>
<c:when test="${condition1}">
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</c:when>
<c:when test="${condition2}">
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</c:when>
<c:otherwise>
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</c:otherwise>
</c:choose>
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Difference between freeze and seal
...jects
Safari: sealed or frozen objects enumerate 92% slower (as of 2014)
Tests: Sealed objects, Frozen objects.
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