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How should I validate an e-mail address?

...g an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp? ...
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No Activity found to handle Intent : android.intent.action.VIEW

...Url addresses must be preceded by http:// Uri uri = Uri.parse("www.google.com"); Intent intent = new Intent(Intent.ACTION_VIEW, uri); throws an ActivityNotFoundException. If you prepend "http://", problem solved. Uri uri = Uri.parse("http://www.google.com"); May not help OP, but I ended up her...
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How do I rename a repository on GitHub?

...oject is called someproject. Then your project's URL will be1 git@github.com:someuser/someproject.git If you rename your project, it will change the someproject part of the URL, e.g. git@github.com:someuser/newprojectname.git (see footnote if your URL does not look like this). Your working c...
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Windows batch files: .bat vs .cmd?

...n other words, if ERRORLEVEL is set to non-0 and then you run one of those commands, the resulting ERRORLEVEL will be: left alone at its non-0 value in a .bat file reset to 0 in a .cmd file. share | ...
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package R does not exist

... add a comment  |  85 ...
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Is there any downside for using a leading double slash to inherit the protocol in a URL? i.e. src=“/

...SSL, then always use the https:// asset." (quote quoted from stackoverflow.com/a/27999789 ) – joonas.fi Aug 18 '15 at 12:59 ...
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Serializing an object to JSON

... arrays have a little thing to it. Please check my question: stackoverflow.com/questions/25423883/… – uylmz Aug 21 '14 at 12:33 add a comment  |  ...
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Are there best practices for (Java) package organization? [closed]

...k down your packages according to their functionality or modules. e.g. com.company.product.modulea Further break down could be based on layers in your software. But don't go overboard if you have only few classes in the package, then it makes sense to have everything in the package. e.g. com.com...
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Cluster analysis in R: determine the optimal number of clusters

... clustergrams to visualize cluster assignment, see http://www.r-statistics.com/2010/06/clustergram-visualization-and-diagnostics-for-cluster-analysis-r-code/ for more details. Eight. The NbClust package provides 30 indices to determine the number of clusters in a dataset. library(NbClust) nb <...
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.NET - Get protocol, host, and port

...ing (C#) code should do the trick Uri uri = new Uri("http://www.mywebsite.com:80/pages/page1.aspx"); string requested = uri.Scheme + Uri.SchemeDelimiter + uri.Host + ":" + uri.Port; share | improv...