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What is a “surrogate pair” in Java?

...mething about surrogate pairs . What is a surrogate pair in this context? And what are low and high surrogates? 7 An...
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What XML parser should I use in C++? [closed]

I have XML documents that I need to parse and/or I need to build XML documents and write them to text (either files or memory). Since the C++ standard library does not have a library for this, what should I use? ...
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Alternatives to gprof [closed]

...used in the presence of mutual recursion. But the visualizer is very nice and light years ahead of gprof. share | improve this answer | follow | ...
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How to install Android SDK Build Tools on the command line?

I want to setup the Android dev environment from command line, and encounter the following issue: 19 Answers ...
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How can I replace a newline (\n) using sed?

...w can I replace a newline (" \n ") with a space (" ") using the sed command? 42 Answers ...
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What is the difference between square brackets and parentheses in a regex?

.../^[789]\d{9}$/ /^[7-9]\d{9}$/ The explanation: (a|b|c) is a regex "OR" and means "a or b or c", although the presence of brackets, necessary for the OR, also captures the digit. To be strictly equivalent, you would code (?:7|8|9) to make it a non capturing group. [abc] is a "character class" th...
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What data type to use for hashed password field and what length?

... @Hippo: Please, don't use the username as the salt. Generate a random salt per user. – Bill Karwin Sep 15 '10 at 18:38 11 ...
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What is the Ruby (spaceship) operator?

...en return -1 if a = b then return 0 if a > b then return 1 if a and b are not comparable then return nil It's useful for sorting an array. share | improve this answer | ...
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What's wrong with nullable columns in composite primary keys?

...keys is not clean relational database design. If there are two entities A and B where A can optionally be related to B, the clean solution is to create a resolution table (let's say AB). That table would link A with B: If there is a relationship then it would contain a record, if there isn't then i...
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Checkbox for nullable boolean

... I got it to work with @Html.EditorFor(model => model.Foo) and then making a Boolean.cshtml in my EditorTemplates folder and sticking @model bool? @Html.CheckBox("", Model.GetValueOrDefault()) inside. sh...