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Unable to resolve host “” No address associated with hostname

...when ever you forget to add permission .. logcat show the error ...... or either generate the crash report ........... – Vipin Sahu Aug 23 '12 at 10:06 14 ...
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Set select option 'selected', by value

I have a select field with some options in it. Now I need to select one of those options with jQuery. But how can I do that when I only know the value of the option that must be selected? ...
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How to simulate a mouse click using JavaScript?

... (Modified version to make it work without prototype.js) function simulate(element, eventName) { var options = extend(defaultOptions, arguments[2] || {}); var oEvent, eventType = null; for (var name in eventMatchers) { if (eve...
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How can I use NSError in my iPhone App?

... am looking into using NSError . I am slightly confused about how to use it, and how to populate it. 9 Answers ...
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How many Activities vs Fragments?

...als are very simplified. They just introduce Fragments but I do not agree with the pattern as suggested. I also agree that it is not a good idea to duplicate your app's logic across many Activities (see DRY Principle on wikipedia). I prefer the pattern used by the ActionBarSherlock Fragments Dem...
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Execution of Python code with -m option or not

...ommand-line flag, Python will import a module or package for you, then run it as a script. When you don't use the -m flag, the file you named is run as just a script. The distinction is important when you try to run a package. There is a big difference between: python foo/bar/baz.py and python -m f...
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Core Data vs SQLite 3 [closed]

I am already quite familiar with relational databases and have used SQLite (and other databases) in the past. However, Core Data has a certain allure, so I am considering spending some time to learn it for use in my next application. ...
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Why do some scripts omit the closing PHP tag, '?>'? [duplicate]

In some scripts I see that they omit writing a closing tag ?> for the script. Why is it and should I do this as well? ...
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Extension methods must be defined in a non-generic static class

...follow | edited Jun 14 '16 at 8:33 answered May 23 '11 at 11:03 ...
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Grouping functions (tapply, by, aggregate) and the *apply family

...ing useRs may have difficulty deciding which one is appropriate for their situation or even remembering them all. They may have a general sense that "I should be using an *apply function here", but it can be tough to keep them all straight at first. Despite the fact (noted in other answers) that mu...