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Why would a static nested interface be used in Java?

...e code. Either way, the developer is simply declaring an interface named Foo.Bar. There is no further association with the enclosing class, except that code which cannot access Foo will not be able to access Foo.Bar either. (From source code - bytecode or reflection can access Foo.Bar even if Foo i...
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Extract subset of key-value pairs from Python dictionary object?

I have a big dictionary object that has several key value pairs (about 16), but I am only interested in 3 of them. What is the best way (shortest/efficient/most elegant) to achieve that? ...
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Average of 3 long integers

I have 3 very large signed integers. 12 Answers 12 ...
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Hidden Features of PHP? [closed]

...at feature of PHP, but I wouldn't really call it hidden... If you've ever googled for method parameters, etc, you would end up at php.net. – John Bubriski♦ Mar 23 '09 at 17:04 27...
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Can I add extension methods to an existing static class?

... technically write static extension methods, instead this code exploits a loophole in extension methods. That loophole being that you can call extension methods on null objects without getting the null exception (unless you access anything via @this). So here's how you would use this: var ds1...
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Interface naming in Java [closed]

Most OO languages prefix their interface names with a capital I, why does Java not do this? What was the rationale for not following this convention? ...
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Difference between Property and Field in C# 3.0+

...nore the other suggestions here, the other reason is that it's simply not good OO design. And if you don't have a very good reason for doing it, always choose a property over a public variable / field. share | ...
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How do I pass multiple parameters into a function in PowerShell?

... active. Parenthesised arguments are used in .NET methods only. function foo($a, $b, $c) { "a: $a; b: $b; c: $c" } ps> foo 1 2 3 a: 1; b: 2; c: 3 share | improve this answer | ...
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inserting characters at the start and end of a string

I am new and trying to find a way to insert a number of L's at the beginning and end of a string. So if I have a string which says ...
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if else in a list comprehension [duplicate]

I have a list l : 8 Answers 8 ...