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Android get free size of internal/external memory

... Below is the code for your purpose : public static boolean externalMemoryAvailable() { return android.os.Environment.getExternalStorageState().equals( android.os.Environment.MEDIA_MOUNTED); } public static String getAvaila...
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How would I get a cron job to run every 30 minutes?

... every 30 minutes, on the hour and 30 minutes past the hour or something close. I have the following, but it doesn't seem to run on 0. ...
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How to place the ~/.composer/vendor/bin directory in your PATH?

I'm on Ubuntu 14.04 and I've been trying all possible methods to install Laravel to no avail. Error messages everything I try. I'm now trying the first method in the quickstart documentation, that is, via Laravel Installer, but it says to "Make sure to place the ~/.composer/vendor/bin directory in...
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How do I change the UUID of a virtual disk?

...l.vhd" The path for the virtual disk contains a space, so it must be enclosed in double quotes to avoid it is parsed as two parameters. share | improve this answer | follow...
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Foreign keys in mongo?

...xample: student { name: 'Kate Monster', addresses : [ { street: '123 Sesame St', city: 'Anytown', cc: 'USA' }, { street: '123 Avenue Q', city: 'New York', cc: 'USA' } ] } Child referencing Like the student/course example above. Parent referencing Suitable for one-to-squillions,...
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What's the difference between eval, exec, and compile?

...gt; g = dict() >>> l = dict() >>> exec('global a; a, b = 123, 42', g, l) >>> g['a'] 123 >>> l {'b': 42} (If you display the value of the entire g, it would be much longer, because exec and eval add the built-ins module as __builtins__ to the globals automaticall...
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Installing R on Mac - Warning messages: Setting LC_CTYPE failed, using “C”

I would like install R on my laptop Mac OS X version 10.7.3 6 Answers 6 ...
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socket.shutdown vs socket.close

...r required, the calling program can discard the socket by applying a close subroutine to the socket descriptor. If a reliable delivery socket has data associated with it when a close takes place, the system continues to attempt data transfer. However, if the data is still undelivered...
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How can I convert an image into a Base64 string?

...You can use the Base64 Android class: String encodedImage = Base64.encodeToString(byteArrayImage, Base64.DEFAULT); You'll have to convert your image into a byte array though. Here's an example: Bitmap bm = BitmapFactory.decodeFile("/path/to/image.jpg"); ByteArrayOutputStream baos = new ByteArray...
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How to close Android application?

I want to close my application, so that it no longer runs in the background. 22 Answers ...