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Volatile vs Static in Java
...t correct to say that static means one copy of the value for all objects and volatile means one copy of the value for all threads?
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Reducing MongoDB database file size
...tabase that was once large (>3GB). Since then, documents have been deleted and I was expecting the size of the database files to decrease accordingly.
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On Duplicate Key Update same as insert
.... My question is quiet simple: Do I really need to specify all the fields (and values in my first example) if they are the same as in the insert? I just want to insert all or if there is a unique value match: update all.
– Roy
Jan 17 '13 at 16:36
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Groovy Shell warning “Could not open/create prefs root node …”
I tried to open the Groovy Shell ( groovysh ) on Windows 8 and got the following output:
9 Answers
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How to get a path to a resource in a Java JAR file
...le" may not be available as a file. Remember you are dealing with classes and resources that may be part of a JAR file or other kind of resource. The classloader does not have to provide a file handle to the resource, for example the jar file may not have been expanded into individual files in the ...
Why does modern Perl avoid UTF-8 by default?
...riable to AS. This makes all Perl scripts decode @ARGV as UTF‑8 strings, and sets the encoding of all three of stdin, stdout, and stderr to UTF‑8. Both these are global effects, not lexical ones.
At the top of your source file (program, module, library, dohickey), prominently assert that you are...
Why does C# have break if it's not optional? [duplicate]
...it fall-through behavior is often used to reduce the amount of code needed and often isn't an issue the first time that code is written. However, as code moves from the initial development phase into a maintenance phase, the code above can lead to subtle errors that are very hard to debug. These e...
Splitting templated C++ classes into .hpp/.cpp files--is it possible?
...ors trying to compile a C++ template class which is split between a .hpp and .cpp file:
16 Answers
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Update R using RStudio
...se a different (previous, x32, x64) bit version.
– Brandon Bertelsen
Dec 1 '12 at 5:50
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@Brandon...
Can an AJAX response set a cookie?
...f the user agent supports HTTP State Management it should persist, discard and send cookies (as received in the Set-Cookie response header, and sent in the Cookie header) as applicable. -- from w3.org/TR/XMLHttpRequest
– smwikipedia
Jan 6 '16 at 13:48
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