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Pure virtual function with implementation

...e type can still define an implementation. A derived class can explicitly call the base class implementation (if access permissions allow it) by using a fully-scoped name (by calling A::f() in your example - if A::f() were public or protected). Something like: class B : public A { virtual voi...
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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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Set Matplotlib colorbar size to match graph

...Has a lot of trouble interacting with subplot_adjust, you have to get the calls in just the right places relative to each other. – Elliot Aug 12 '13 at 22:16 11 ...
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How to use icons and symbols from “Font Awesome” on Native Android Application

...entry in strings.xml for each icon. Eg for a heart: <string name="icon_heart"></string> Referenced said entry in the view of my xml layout: <Button android:id="@+id/like" style="?android:attr/buttonStyleSmall" ... android:text="@string/icon_heart" ...
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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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How do I load the contents of a text file into a javascript variable?

...echange = function() { alert(client.responseText); } client.send(); Normally speaking, though, XMLHttpRequest isn't available on all platforms, so some fudgery is done. Once again, your best bet is to use an AJAX framework like jQuery. One extra consideration: this will only work as long as foo....
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How to create an empty file at the command line in Windows?

...omad mentions an original one: C:\Users\VonC\prog\tests>aaaa > empty_file 'aaaa' is not recognized as an internal or external command, operable program or batch file. C:\Users\VonC\prog\tests>dir Folder C:\Users\VonC\prog\tests 27/11/2013 10:40 <REP> . 27/11/2013 10...
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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 ...
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Adding an onclick function to go to url in JavaScript?

... @FayazMd not sure what you're trying to do? Usually if it's JavaScript inside the DOM (currenty inside DOM's element a) as a web page you can not control JS behaviour on the next page (where you're redirecting the browser page). When user leaves the page it's done. Unle...
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ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

...ms instead of programming. Recently, I have been following a manual to install a software suite on Ubuntu. I have no knowledge of mySQL at all, actually. I have done the following installations on my Ubuntu. ...