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Difference between static class and singleton pattern?

... interface. Try coding it, will work. I could compile the code without any error. – nanosoft May 9 '16 at 10:25 add a comment  |  ...
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Unique constraint that allows empty values in MySQL

...reates a constraint such that all values in the index must be distinct. An error occurs if you try to add a new row with a key value that matches an existing row. For all engines, a UNIQUE index allows multiple NULL values for columns that can contain NULL. ...
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What does int argc, char *argv[] mean?

... @EmilVikström No, that's a serious error that probably results in a segfault. *NULL is definitely not equal to NULL. – user229044♦ Jan 12 '14 at 1:42 ...
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java.sql.SQLException: Incorrect string value: '\xF0\x9F\x91\xBD\xF0\x9F…'

... Scratch that, I forgot the '?' But now I am back to the same error as the original post... – CodeKingPlusPlus Nov 30 '12 at 22:05 ...
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What's so great about Lisp? [closed]

... around giving the compiler enough information to catch a certain class of errors so they don't happen at runtime. But you still need to test. This article argues for dynamic typing along with more testing: Strong Typing vs. Strong Testing. Hard to pick up. There are actually two parts to this: ...
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How do I check if a string is unicode or ascii?

...is valid utf-8 or ascii You can call decode. If it raises a UnicodeDecodeError exception, it wasn't valid. >>> u_umlaut = b'\xc3\x9c' # UTF-8 representation of the letter 'Ü' >>> u_umlaut.decode('utf-8') u'\xdc' >>> u_umlaut.decode('ascii') Traceback (most recent cal...
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bash: shortest way to get n-th column of output

...mand for generally extracting column n; x n. The script should do proper error checking and bail if invoked with a non-numeric argument or the incorrect number of arguments, etc; but expanding on this bare-bones essential version will be in unit 102. Maybe you will want to extend the script to al...
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How do I determine the dependencies of a .NET application?

... correct me if im wrong but this will just give you the same error that your application with a missing dependency gives so is not very useful – jk. Aug 31 '16 at 10:51 ...
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How to display PDF file in HTML?

...to use iframe together with google docs viewer otherwise you might get an "Error detected by the Application Firewall" message, depending on your hosting. – user890332 Sep 6 '17 at 0:05 ...
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How to find unused/dead code in java projects [closed]

...n see what complaints I get. For methods that are used, this will provoke errors, and I return them to the lowest access level I can. For methods that are unused, this will provoke warnings about unused methods, and those can then be deleted. And as a bonus, you often find some public methods tha...