大约有 40,000 项符合查询结果（耗时：0.0561秒） [XML]
Returning value that was passed into a method
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How to find difference between two Joda-Time DateTimes in minutes
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Advantage of switch over if-else statement
...-depth study of the assembly code generated by a switch. Very enlightning: http://lazarenko.me/switch/
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Convert PDF to clean SVG? [closed]
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Inkscape is used by many people on Wikipedia to convert PDF to SVG.
http://inkscape.org/
They even have a handy guide on how to do so!
http://en.wikipedia.org/wiki/Wikipedia:Graphic_Lab/Resources/PDF_conversion_to_SVG#Conversion_with_Inkscape
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Why is char[] preferred over String for passwords?
...ssword (plaintext or otherwise). You get it from the browser as part of an HTTP request, for instance. You cannot control the delivery, but you can control your own storage, so as soon as you get it, put it in a char[], do what you need to do with it, then set all to '0' and let the gc reclaim it.
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What's the difference between identifying and non-identifying relationships?
...ifying relationship exists when the value in the child table can be null.
http://www.sqlteam.com/article/database-design-and-modeling-fundamentals
Here's a simple example of an identifying relationship:
Parent
------
ID (PK)
Name
Child
-----
ID (PK)
ParentID (PK, FK to Parent.ID) -- notice PK
Na...
What's so bad about Template Haskell?
...uasi-quoters I've been working on lately (using haskell-src-exts / meta) - https://github.com/mgsloan/quasi-extras/tree/master/examples . I know this introduces some bugs such as not being able to splice in the generalized list comprehensions. However, I think that there's a good chance that some of...
How to generate a random string of a fixed length in Go?
...m /dev/urandom) and is geared towards cryptographic random generation. see http://golang.org/pkg/crypto/rand/#example_Read . It might be slower than normal pseudo-random number generation though.
Take a random number and hash it using md5 or something like this.
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enum - getting value of enum on string conversion
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