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What is the difference between Spring, Struts, Hibernate, JavaServer Faces, Tapestry?

...ased presentation framework. JavaServer Pages is a view technology used by all mentioned presentation framework for the view. Tapestry is another component-based presentation framework. So, to summarize: Struts 2, JSF, Tapestry (and Wicket, Spring MVC, Stripes) are presentation frameworks. If yo...
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Check if Internet Connection Exists with Javascript? [duplicate]

...browsers, doing so with older web browsers may not work as expected, or at all. Alternatively, an XHR request to your own server isn't that bad of a method for testing your connectivity. Considering one of the other answers state that there are too many points of failure for an XHR, if your XHR is ...
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How to specify the location with wget?

... prefix to prefix. The directory prefix is the directory where all other files and sub-directories will be saved to, i.e. the top of the retrieval tree. The default is . (the current directory). So you need to add -P /tmp/cron_test/ (short form) or --directory-pr...
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How to use sidebar with the keyboard in Sublime Text 2 and 3?

...ut for "Focus Group 1", but if you want to focus the group which was originally focused, use Esc instead (see the unofficial docs). For example, if group 2 is focused, and you then focus the side bar, Esc will return the focus to group 2. – TachyonVortex Dec 16...
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Delete topic in Kafka 0.8.1.1

...he easiest way to do that (if you don't care about up time) is to shutdown all your brokers, delete your logs for that topic and changing you ZK namespace. – frank Jun 18 '14 at 16:16 ...
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Hide grid row in WPF

... UpVoted - Converters permit all this to be declarative in Xaml. I generally hate using code-behind to fiddle with visual stuff. – Allen May 22 '14 at 13:43 ...
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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()

...ost efficient since it does not even create an object, but new Date() is really just a thin wrapper about a long, so it is not far behind. Calendar, on the other hand, is relatively slow and very complex, since it has to deal with the considerably complexity and all the oddities that are inherent to...
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How to get value of selected radio button?

... @mzalazar No, every radio-button has its own ID but all have the same name which is what puts them into one group so if you select one the other one gets deselected. With Kamran Ahmed answer you can check which of the radio buttons in the group is selected and get only the val...
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Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?

... catching an EOF exception won't save you from all the other potential errors. – Padraic Cunningham Jul 16 '14 at 23:06 ...
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Is there a way to automatically generate getters and setters in Eclipse?

...ge number of variables. Since I am planning to add getters and setters for all of them, I was wondering: is there a shortcut in Eclipse for automatically generating the getters and setters in a given class? ...