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How to extract numbers from a string and get an array of ints?
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Pattern p = Pattern.compile("-?\\d+");
Matcher m = p.matcher("There are more than -2 and less than 12 numbers here");
while (m.find()) {
System.out.println(m.group());
}
... prints -2 and 12.
-? matches a leading negative sign -- optionally. \d matches a digit, and we need to write \ as \\...
How to check that an element is in a std::set?
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What is Full Text Search vs LIKE
... A fulltext index, however, can. In fact, fulltext indexes can offer a lot more flexibility in terms of the order of matching words, how close those words are together, etc.
Stemming:
A fulltext search can stem words. If you search for run, you can get results for "ran" or "running". Most ...
How can I force a long string without any blank to be wrapped?
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Checking whether a variable is an integer or not [duplicate]
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Collection versus List what should you use on your interfaces?
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How to initialise memory with new operator in C++?
...rom people that do not bother to read the comments below, I should make it more clear that this answer does not say that vector is always the right answer. But it sure is a more C++ way than "manually" making sure to delete an array.
Now with C++11, there is also std::array that models a constant s...
Timer function to provide time in nano seconds using C++
...x
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For windows you want to use the QueryPerformanceCounter. And here is more on QPC
Apparently there is a known issue with QPC on some chipsets, so you may want to make sure you do not have those chipset. Additionally some dual core AMDs may also cause a problem. See the second post by sebbbi, w...
Is Response.End() considered harmful?
... I cannot think but that Web Forms is broken by design. What is more performance degrading, calling Response.End() or letting the page load everything and then suppress the response? I cannot see where Response.End() is "more" harmful here. Moreover, Microsoft treats `ThreadAbortedExcepti...
Pattern to avoid nested try catch blocks?
Consider a situation where I have three (or more) ways of performing a calculation, each of which can fail with an exception. In order to attempt each calculation until we find one that succeeds, I have been doing the following:
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