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String's Maximum length in Java - calling length() method

...ALUE, which is 2^31 - 1 (or approximately 2 billion.) In terms of lengths and indexing of arrays, (such as char[], which is probably the way the internal data representation is implemented for Strings), Chapter 10: Arrays of The Java Language Specification, Java SE 7 Edition says the following: ...
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What are all the user accounts for IIS/ASP.NET and how do they differ?

Under Windows Server 2008 with ASP.NET 4.0 installed there is a whole slew of related user accounts, and I can't understand which one is which, how to they differ, and which one is REALLY the one that my app runs under. Here's a list: ...
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How to write a:hover in inline CSS?

...defining the selection criteria). Response to the OP's comments: See Totally Pwn CSS with Javascript for a good script on adding CSS rules dynamically. Also see Change style sheet for some of the theory on the subject. Also, don't forget, you can add links to external stylesheets if that's an op...
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Prepend a level to a pandas MultiIndex

... This is especially nice for adding a level to the columns by adding axis=1, since the df.columns doesn't have the "set_index" method like the index, which always bugs me. – Rutger Kassies Feb 10 '17 a...
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How do I make a checkbox required on an ASP.NET form?

I've done some searching on this, and I've found several partial answers, however nothing that gives me that warm fuzzy "this is the right way to do this". To answer the most frequently occurring complaint against this question: "checkboxes can have two legitimate states - checked and unchecked", th...
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pandas resample documentation

...ffsets), and a section about resampling. Note that there isn't a list of all the different how options, because it can be any NumPy array function and any function that is available via groupby dispatching can be passed to how by name. ...
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What does “%” (percent) do in PowerShell?

..." symbol - it makes it harder for folks to read/maintain your code - especially people new to PS. Let's face it, the more people that pick up PS, the better. – Simon Catlin Apr 3 '14 at 20:17 ...
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Generating random whole numbers in JavaScript in a specific range?

... It's only doing that because it's calling floor, which rounds down. – Josh Stodola Oct 6 '09 at 20:17 6 ...
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Unique constraint on multiple columns

...o I add a unique constraint for columns fcode, scode, dcode with t-sql and/or management studio ? fcode, scode, dcode must be unique together. ...
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Difference between Convert.ToString() and .ToString()

What is the difference between Convert.ToString() and .ToString() ? 19 Answers 19 ...