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Android Studio could not find any version that matches com.android.support:appcompat-v7:+

...io go to: Tools >> Android >> SDK Manager Select and install "Extras|Android Support Repository" share | improve this answer | follow | ...
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How to enter quotes in a Java string?

I want to initialize a String in Java, but that string needs to include quotes; for example: "ROM" . I tried doing: 10 Ans...
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Android: Background Image Size (in Pixel) which Support All Devices

... ldpi (low) ~120dpi mdpi (medium) ~160dpi hdpi (high) ~240dpi xhdpi (extra-high) ~320dpi xxhdpi (extra-extra-high) ~480dpi xxxhdpi (extra-extra-extra-high) ~640dpi This corresponds to an xxhdpi screen. From here I could scale these 1080 x 1920 down by the (3:4:6:8:12) ratios above. I ...
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Cannot delete directory with Directory.Delete(path, true)

...Just slap this code into your project. public static void DeleteDirectory(string target_dir) { string[] files = Directory.GetFiles(target_dir); string[] dirs = Directory.GetDirectories(target_dir); foreach (string file in files) { File.SetAttributes(file, FileAttributes.Nor...
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What does if __name__ == “__main__”: do?

...in program, e.g. python foo.py the interpreter will assign the hard-coded string "__main__" to the __name__ variable, i.e. # It's as if the interpreter inserts this at the top # of your module when run as the main program. __name__ = "__main__" When Your Module Is Imported By Another On the other...
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How to use Google App Engine with my own naked domain (not subdomain)?

After hours of reading about and experimenting with DNS records I can access my Google App Engine app via these URLs: 14 An...
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How to convert a String into an ArrayList?

In my String, I can have an arbitrary number of words which are comma separated. I wanted each word added into an ArrayList. E.g.: ...
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Best explanation for languages without null

...ce type gets this extra state in its space that is typically undesired. A string variable could be any sequence of characters, or it could be this crazy extra null value that doesn't map into my problem domain. A Triangle object has three Points, which themselves have X and Y values, but unfortuna...
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Heroku NodeJS http to https ssl forced redirect

I have an application up and running on heroku with express on node with https,. How do I identify the protocol to force a redirect to https with nodejs on heroku? ...
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How to convert a char array to a string?

Converting a C++ string to a char array is pretty straightorward using the c_str function of string and then doing strcpy . However, how to do the opposite? ...