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What does Java option -Xmx stand for? [duplicate]

...it says, -Xmxn Specify the maximum size, in bytes, of the memory allocation pool. This value must a multiple of 1024 greater than 2MB. Append the letter k or K to indicate kilobytes, or m or M to indicate megabytes. The default value is 64MB. The upper limit for this value will be approxim...
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How do I invert BooleanToVisibilityConverter?

...sources> <Converters:InvertableBooleanToVisibilityConverter x:Key="_Converter"/> </UserControl.Resources> <Button Visibility="{Binding IsRunning, Converter={StaticResource _Converter}, ConverterParameter=Inverted}">Start</Button> ...
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recursion versus iteration

...where recursion is used a for loop could be used? And if recursion is usually slower what is the technical reason for ever using it over for loop iteration? ...
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Git diff to show only lines that have been modified

...ption for that repository: git config diff.context 0 To have it set globally, for any repository: git config --global diff.context 0 share | improve this answer | follo...
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How do I make a redirect in PHP?

...FC 7231 which had replaced the old RFC 2616, where only absolute URLs were allowed. Status Codes PHP's "Location"-header still uses the HTTP 302-redirect code, this is a "temporary" redirect and may not be the one you should use. You should consider either 301 (permanent redirect) or 303 (other). No...
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Numpy `logical_or` for more than two arguments

... no, as the docs explicitly say, the only parameters are x1, x2, and optionally out: numpy.logical_or(x1, x2[, out]) = <ufunc 'logical_or'> You can of course chain together multiple logical_or calls like this: >>> x = np.array([True, True, False, False]) >>> y = np.a...
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Difference between and

...s will not submit a form - they don't do anything by default. They're generally used in conjunction with JavaScript as part of an AJAX application. <input type="submit"> buttons will submit the form they are in when the user clicks on them, unless you specify otherwise with JavaScript. ...
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What are the most-used vim commands/keypresses?

...rouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' for appending text at the end of the line, or…" I can't imagine everyone uses a...
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How to find if an array contains a specific string in JavaScript/jQuery? [duplicate]

... You really don't need jQuery for this. var myarr = ["I", "like", "turtles"]; var arraycontainsturtles = (myarr.indexOf("turtles") > -1); Hint: indexOf returns a number, representing the position where the specified searchv...
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How do I get a file name from a full path with PHP?

...ray with the parts of the path. Or for the case here, you can just specifically ask for the filename. So pathinfo('/var/www/html/index.php', PATHINFO_FILENAME) should return 'index.php' PHP Pathinfo documentation – OnethingSimple Apr 19 '15 at 13:54 ...