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Java EE 6 @javax.annotation.ManagedBean vs. @javax.inject.Named vs. @javax.faces.ManagedBean
...endency injection framework, but they could not gather all requirements in one specification because they could not predict the future requirements and they made EJB 1.0 and then 2.0 and then 3.0 and now 3.1 but EJB's target was for just some requirements (transaction, distributed component model, e...
Why can tuples contain mutable items?
...s are Python's way of collecting heterogeneous pieces of information under one roof. For example,
s = ('www.python.org', 80)
brings together a string and a number so that the host/port pair can be passed around as a socket, a composite object. Viewed in that light, it is perfectly reasonable to ...
Codesign error: Provisioning profile cannot be found after deleting expired profile
...so I removed it from the iPod and from iTunes. When I chose a new profile (one with an * in the identifier), I now get an error:
...
How to find patterns across multiple lines using grep?
...)*efg' test.txt
where -M, --multiline allow patterns to match more than one line
There is a newer pcre2grep also. Both are provided by the PCRE project.
pcre2grep is available for Mac OS X via Mac Ports as part of port pcre2:
% sudo port install pcre2
and via Homebrew as:
% brew install pc...
method overloading vs optional parameter in C# 4.0 [duplicate]
which one is better? at a glance optional parameter seems better (less code, less XML documentation, etc), but why do most MSDN library classes use overloading instead of optional parameters?
...
Why should I not wrap every block in “try”-“catch”?
.../catch are more or less free when there isn't any exception. When there is one propagating it does consumes time each times it's thrown and caught, so a chain of try/catch that only rethrow isn't costless.
– Matthieu M.
Apr 29 '10 at 13:41
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Get just the filename from a path in a Bash script [duplicate]
... may as well find a method that can strip off the path and the extension.
One way to do that (and this is a bash-only solution, needing no other executables):
pax> a=/tmp/xx/file.tar.gz
pax> xpath=${a%/*}
pax> xbase=${a##*/}
pax> xfext=${xbase##*.}
pax> xpref=${xbase%.*}
pax> ec...
What does threadsafe mean?
...”
“…and the need for a shared piece of data to be accessed by only one
thread at any given time.”
Definitely worth a read!
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How to determine if a number is a prime with regex?
...if n == 3.
.?
The first part of the regex says, "any character, zero or one times". So basically, is there zero or one character-- or, per what I mentioned above, n == 0 || n == 1. If we have the match, then return the negation of that. This corresponds with the fact that zero and one are NOT pri...
In C#, how to check if a TCP port is available?
... edited Jan 7 '13 at 10:59
Soner Gönül
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answered Feb 20 '09 at 17:17
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