大约有 10,150 项符合查询结果(耗时:0.0214秒) [XML]

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Timeout a command in bash without unnecessary delay

This answer to Command line command to auto-kill a command after a certain amount of time 23 Answers ...
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What is the difference between ArrayList.clear() and ArrayList.removeAll()?

Assuming that arraylist is defined as ArrayList<String> arraylist , is arraylist.removeAll(arraylist) equivalent to arraylist.clear() ? ...
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What is the difference between float and double?

I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affect the results. Is this really the case? When are floats and doubles interchangeable? What are the d...
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Get size of an Iterable in Java

I need to figure out the number of elements in an Iterable in Java. I know I can do this: 10 Answers ...
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Git undo changes in some files [duplicate]

While coding I added print statements into some files to keep track of what was going on. 6 Answers ...
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C++11 features in Visual Studio 2012

A preview version of Visual Studio 2012 (the next version after VS2010) is now available . 7 Answers ...
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How can I remove the decimal part from JavaScript number?

I have the results of a division and I wish to discard the decimal portion of the resultant number. 14 Answers ...
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Fastest sort of fixed length 6 int array

Answering to another Stack Overflow question ( this one ) I stumbled upon an interesting sub-problem. What is the fastest way to sort an array of 6 integers? ...
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Angularjs if-then-else construction in expression

Can I somehow use if-then-else construction (ternary-operator) in angularjs expression, for example I have function $scope.isExists(item) that has to return bool value. I want something like this, ...
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When would anyone use a union? Is it a remnant from the C-only days?

I have learned but don't really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming ...