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Does JSON syntax allow duplicate keys in an object?
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@BenCrowell: As far as I know, JSON is not supposed to be valid JavaScript and there are cases where it's not, see timelessrepo.com/json-isnt-a-javascript-subset. With that said, it was of course heavily inspired by JavaScript (it even says so in the ...
How to generate gcc debug symbol outside the build target?
I know I can generate debug symbol using -g option. However the symbol is embeded in the target file. Could gcc generate debug symbol outside the result executable/library? Like .pdb file of windows VC++ compiler did.
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Most underused data visualization [closed]
...to plot 3D scatter plots using rgl.
GGobi
Another package that is worth knowing is rggobi. There is a Springer book on the subject, and lots of great documentation/examples online, including at the "Looking at Data" course.
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Java HashMap performance optimization / alternative
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@Oscar - more collisions equals more work to do, because now you have to do a linear search of the hash chain. If you have 26,000,000 distinct values per equals(), and 26,000 distinct values per hashCode(), then the bucket chains will have 1,000 objects each.
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How to configure MongoDB Java driver MongoOptions for production use?
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the "slaveOk" option is now deprecated, if you want the equivalent of this to be true, do: mongoOptions.readPreference = ReadPreference.secondaryPreferred();
– Gubatron
Oct 18 '12 at 2:45
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Why do this() and super() have to be the first statement in a constructor?
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Considering the compiler knows when you're accessing parent methods/fields I don't see why you can't be allowed something along the lines of Constructor(int x) { this.field1 = x; super(); }. Sure, you shouldn't need to in an ideal world where you cont...
MySQL - ORDER BY values within IN()
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Careful. Any unknown property value (not in the list) will take precedence over the known values, i.e. FIELD(letter, 'A', 'C'), the list will first return entries with B letter first (assuming a set of records with A | B | C values). To avoi...
google oauth2 redirect_uri with several parameters
...putStr)
{
return base64_decode(strtr($inputStr, '-_,', '+/='));
}
So now state would be something like: stateString -> asawerwerwfgsg,
Pass this state in OAuth authorization URL:
https://accounts.google.com/o/oauth2/auth?
client_id=21302922996.apps.googleusercontent.com&
redirect_...
Difference between DTO, VO, POJO, JavaBeans?
...inition of Data Transfer Object:
Data transfer object (DTO), formerly known as value objects or VO, is a design pattern used to transfer data between software application subsystems. DTOs are often used in conjunction with data access objects to retrieve data from a database.
The difference...
Setting global styles for Views in Android
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The most elegant solution I saw until now.
– Italo Borssatto
Sep 2 '11 at 17:42
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