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What is Persistence Context?
I am new to the Java world and JPA. I was studying JPA and came across many new terms like Entity, persistence. While reading, I could not understand the exact definition for Persistence Context .
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How can I upload files asynchronously?
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With HTML5 you can make file uploads with Ajax and jQuery. Not only that, you can do file validations (name, size, and MIME type) or handle the progress event with the HTML5 progress tag (or a div). Recently I had to make a file uploader, but I didn't want to use Flash no...
Where do you store your salt strings?
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The point of rainbow tables is that they're created in advance and distributed en masse to save calculation time for others - it takes just as long to generate rainbow tables on the fly as it would to just crack the password+salt combination directly (since effectively what's being done ...
Can I save the window layout in Visual Studio 2010/2012/2013?
Is there a way to save (and later revert to) a given window layout in VS2010/VS2012/2013?
5 Answers
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Verify if a point is Land or Water in Google Maps
..and then Google-maps "divide the waters from the waters"
18 Answers
18
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PHP cURL not working - WAMP on Windows 7 64 bit
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Go to http://www.anindya.com/php-5-4-3-and-php-5-3-13-x64-64-bit-for-windows/ and download the cURL version that corresponds to your PHP version under "Fixed curl extensions:".
So if you have PHP 5.3.13, download "php_curl-5.3.13-VC9-x64.zip". Try the "VC" versio...
Redefine tab as 4 spaces
...faults, but you may want to set them defensively):
set softtabstop=0 noexpandtab
Finally, if you want an indent to correspond to a single tab, you should also use:
set shiftwidth=4
For indents that consist of 4 space characters but are entered with the tab key:
set tabstop=8 softtabstop=0 expa...
.Net picking wrong referenced assembly version
I just copied an existing project to a brand new machine to start developing on it and have run into a problem with the version of one of my referenced assemblies (a telerik DLL as it happens).
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Difference between String replace() and replaceAll()
What's the difference between java.lang.String 's replace() and replaceAll() methods,
other than later uses regex? For simple substitutions like, replace . with / ,
is there any difference?
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What's the result of += in C and C++?
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Semantics of the compound assignment operators is different in C and C++:
C99 standard, 6.5.16, part 3:
An assignment operator stores a value in the object designated by the left operand. An
assignment expression has the value of the left operand after the assignment, but is not an
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