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Which regular expression operator means 'Don't' match this character?
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You can use negated character classes to exclude certain characters: for example [^abcde] will match anything but a,b,c,d,e characters.
Instead of specifying all the characters literally, you can use shorthands inside character classes: [\w] (lowercase) will match any "word cha...
PSQLException: current transaction is aborted, commands ignored until end of transaction block
I am seeing the following (truncated) stacktrace in the server.log file of JBoss 7.1.1 Final:
20 Answers
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What effect(s) can the virtual keyword have in Entity Framework 4.1 POCO Code First?
Does the virtual keyword has an effect when used on the properties in EF Code First?. Can someone describe all of its ramifications in different situations?
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Example for sync.WaitGroup correct?
... and the position of wg.Done() . Does it make sense to add the four goroutines at once with wg.Add() ?
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Cannot serve WCF services in IIS on Windows 8
When I try to serve a WCF service on IIS in a Windows 8 machine, I get the well known error
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Git - deleted some files locally, how do I get them from a remote repository
I've deleted some files on my PC, how do I download them again?
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git pull keeping local changes
How can I safely update (pull) a git project, keeping specific files untouched, even if there's upstream changes?
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How do I script a “yes” response for installing programs?
I work with Amazon Linux instances and I have a couple scripts to populate data and install all the programs I work with, but a couple of the programs ask:
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
Why is it that scanf() needs the l in " %lf " when reading a double , when printf() can use " %f " regardless of whether its argument is a double or a float ?
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How can i get the session object if i have the entity-manager
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To be totally exhaustive, things are different if you're using a JPA 1.0 or a JPA 2.0 implementation.
JPA 1.0
With JPA 1.0, you'd have to use EntityManager#getDelegate(). But keep in mind that the result of this method is implementation specific i.e....