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Pinging servers in Python

...mmand = ['ping', param, '1', host] return subprocess.call(command) == 0 Note that, according to @ikrase on Windows this function will still return True if you get a Destination Host Unreachable error. Explanation The command is ping in both Windows and Unix-like systems. The option -n (Wind...
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Creating an array of objects in Java

...e this: a1 = new A(); Similarly, with the array you need to do this: a[0] = new A(); ...before using it. share | improve this answer | follow | ...
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Make div stay at bottom of page's content all the time even when there are scrollbars

...ition: fixed was designed for: #footer { position: fixed; bottom: 0; width: 100%; } Here's the fiddle: http://jsfiddle.net/uw8f9/ share | improve this answer | ...
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When should I use double instead of decimal?

... 310 I think you've summarised the advantages quite well. You are however missing one point. The deci...
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Java: How to test methods that call System.exit()?

...quals("Exit status", 42, e.status); } } } Update December 2012: Will proposes in the comments using System Rules, a collection of JUnit(4.9+) rules for testing code which uses java.lang.System. This was initially mentioned by Stefan Birkner in his answer in December 2011. System.ex...
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Printing the correct number of decimal points with cout

... 205 With <iomanip>, you can use std::fixed and std::setprecision Here is an example #includ...
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How to make input type= file Should accept only pdf and xls

... answered Aug 27 '12 at 13:10 feeelafeeela 25.3k66 gold badges5454 silver badges6666 bronze badges ...
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string to string array conversion in java

... 202 To start you off on your assignment, String.split splits strings on a regular expression and th...
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How do I connect to this localhost from another computer on the same network?

...ations/MAMP/htdocs/Symfony/ as the root of my website. <VirtualHost *:80> DocumentRoot "/Applications/MAMP/htdocs/Symfony/" ServerName symfony.local </VirtualHost> 2 Configure your hosts file: For the client (your browser in that case) to understand what symfony.local reall...
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Removing input background colour for Chrome autocomplete?

... 40 Answers 40 Active ...