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Java “lambda expressions not supported at this language level”

I was testing out some new features of Java 8 and copied the example into my IDE (Eclipse originally, then IntelliJ) as shown here ...
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How do you do Impersonation in .NET?

...ersonationContext WindowsIdentity The code can often get lengthy though and that is why you see many examples like the one you reference that try to simplify the process. share | improve this ans...
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How to remove illegal characters from path and filenames?

I need a robust and simple way to remove illegal path and file characters from a simple string. I've used the below code but it doesn't seem to do anything, what am I missing? ...
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Can I redirect the stdout in python into some sort of string buffer?

... explicit save as I've done, since someone else could have replaced stdout and if you use stdout, you'd clobber their replacement. – Ned Batchelder Aug 2 '09 at 14:25 5 ...
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What does = +_ mean in JavaScript

...page on Arithmetic Operators: The unary plus operator precedes its operand and evaluates to its operand but attempts to converts it into a number, if it isn't already. [...] It can convert string representations of integers and floats, as well as the non-string values true, false, and null...
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How to pretty print nested dictionaries?

... U know @Ken's conventional answer is much better than this. Json already handles everything and this can give errors such: UnicodeEncodeError: 'ascii' codec can't encode character u'\xf3' in position 50: ordinal not in range(128) – wonderwhy Aug 27 '14 at 13:2...
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how to draw smooth curve through N points using javascript HTML5 canvas?

...nts), but for my purposes (a drawing application), it's good enough for me and visually you can't tell the difference. There is a solution to go through all the sample points, but it is much more complicated (see http://www.cartogrammar.com/blog/actionscript-curves-update/) Here is the the drawing...
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How to check that an element is in a std::set?

... this is specific for sets and maps. vectors, lists etc. don't have a find member function. – wilhelmtell Nov 9 '09 at 13:53 11 ...
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Java: Calling a super method which calls an overridden method

... The keyword super doesn't "stick". Every method call is handled individually, so even if you got to SuperClass.method1() by calling super, that doesn't influence any other method call that you might make in the future. That means there is no direct way to call SuperClass.method2()...
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How to deal with SettingWithCopyWarning in Pandas?

I just upgraded my Pandas from 0.11 to 0.13.0rc1. Now, the application is popping out many new warnings. One of them like this: ...