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What version of javac built my jar?

....org/wiki/Java_class_file Note: As mentioned in the comment below, those bytes tell you what version the class has been compiled FOR, not what version compiled it. share | improve this answ...
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How to run Node.js as a background process and never die?

...erver.js & There's also the jobs command to see an indexed list of those backgrounded processes. And you can kill a backgrounded process by running kill %1 or kill %2 with the number being the index of the process. Powerful solution (allows you to reconnect to the process if it is interactive...
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iPhone Data Usage Tracking/Monitoring

...voicemail, general networking interface. I read in Apple forum that : The OS does not keep network statistics on a process-by-process basis. As such, there's no exact solution to this problem. You can, however, get network statistics for each network interface. In general en0 is your Wi-Fi interfa...
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What is SaaS, PaaS and IaaS? With examples

...eanstalk, Windows Azure, Heroku, Force.com, Google App Engine, Apache Stratos. While in SaaS (Software as a Service) model you are provided with access to application software often referred to as "on-demand software". You don't have to worry about the installation, setup and running of the applicat...
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What is /dev/null 2>&1?

...nks. It would help me to understand the web attack that I recently came across. Attacker is injecting some malicious code through POST request which contains above piece of code. – Sohel Pathan May 16 '18 at 6:09 ...
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SimpleTest vs PHPunit

...e i'm just misinformed but as far as I've seen: PHPUnit is the standard; most frameworks use it (like Zend Framework (1&2), Cake, Agavi, even Symfony is dropping their own Framework in Symfony 2 for phpunit). PHPUnit is integrated in every PHP IDE (Eclipse, Netbeans, Zend Stuide, PHPStorm) and ...
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Mac OSX Lion DNS lookup order [closed]

After upgrading to Mac OSX Lion I figured out that /etc/hosts is not looked up in first place for name resolution anymore. This leads to some side effects like: ...
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Case insensitive string compare in LINQ-to-SQL

...ctly the type of case (in)sensitive check you use depends on what your purposes is. But in general use Equals for equality checks and Compare when you're sorting, and then pick the right StringComparison for the job. Michael Kaplan (a recognized authority on culture and character handling such as ...
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What is Inversion of Control?

... Good clear example. However, suppose rather than requiring the ISpellChecker interface be passed to the object's constructor, we exposed it as a settable property (or SetSpellChecker method). Would this still constitute IoC? – devios1 ...
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How to find out which processes are using swap space in Linux?

... problem as pointed out in the comments. From the htop FAQ: It is not possible to get the exact size of used swap space of a process. Top fakes this information by making SWAP = VIRT - RES, but that is not a good metric, because other stuff such as video memory counts on VIRT as well (for ...