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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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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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'printf' vs. 'cout' in C++

What is the difference between printf() and cout in C++? 16 Answers 16 ...
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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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Adding git branch on the Bash command prompt

...'git-prompt.sh' -type f -print -quit 2>/dev/null /Library/Developer/CommandLineTools/usr/share/git-core/git-prompt.sh Option 2: Pull the script from GitHub. Next, add the following line to your .bashrc/.zshrc: source ~/.git-prompt.sh Finally, change your PS1 to call __git_ps1 as command-sub...
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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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File Upload ASP.NET MVC 3.0

...="file" name="file" /> <input type="submit" value="OK" /> } and then you would have a controller to handle the upload: public class HomeController : Controller { // This action renders the form public ActionResult Index() { return View(); } // This action...
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__init__ for unittest.TestCase

...erriding the TestCase's __init__, so you might want to let the base class handle the arguments for you. share | improve this answer | follow | ...