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Android: Getting a file URI from a content URI?

In my app the user is to select an audio file which the app then handles. The problem is that in order for the app to do what I want it to do with the audio files, I need the URI to be in file format. When I use Android's native music player to browse for the audio file in the app, the URI is a cont...
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Why doesn't await on Task.WhenAll throw an AggregateException?

... Excellent clear answer, this should IMO be the selected one. – bytedev Feb 22 '18 at 17:16 3 ...
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Is there a way to create multiline comments in Python?

... In any case, your text editor should also be able to easily comment-out a selected region (by placing a # in front of each line individually). If not, switch to a text editor that does. Programming in Python without certain text editing features can be a painful experience. Finding the right edito...
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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?

I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it. ...
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Format number to 2 decimal places

... Show as decimal Select ifnull(format(100.00, 1, 'en_US'), 0) 100.0 Show as Percentage Select concat(ifnull(format(100.00, 0, 'en_US'), 0), '%') 100% share ...
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If using maven, usually you put log4j.properties under java or resources?

... configuration: Run->Run Configurations...->Java Application->New select the Classpath tab, select Advanced and browse to your src/resources directory. share | improve this answer ...
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Why Java needs Serializable interface?

... This is clearly the better answer, I am disappointed that the selected answer is not this, it seems the posted chose with a "Im annoyed because I have to declare things serializable" agenda in mind. Its an example of some one wanting to free whell and not heed the security and design le...
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LINQ Ring: Any() vs Contains() for Huge Collections

... result = context.Projects.Where(x => lstBizIds.Contains(x.businessId)).Select(x => x.projectId).ToList(); This will give the query SELECT Id FROM Projects INNER JOIN (VALUES (1), (2), (3), (4), (5)) AS Data(Item) ON Projects.UserId = Data.Item while Any() on the other hand always iterate t...
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java: (String[])List.toArray() gives ClassCastException

... Please! Format your code! Select all of it at press "ctrl + k", or add " ` " before the first letter of code and at the last one another one. You can also select "{}" in the help at the top when writing the answer! – M.K ...
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How to get all files under a specific directory in MATLAB?

...d the ability to apply a validation function to each file, allowing you to select them based on criteria other than just their names (i.e. file size, content, creation date, etc.). NOTE: In newer versions of MATLAB (R2016b and later), the dir function has recursive search capabilities! So you can...