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Delete files or folder recursively on Windows CMD

How do I delete files or folders recursively on Windows from the command line? 12 Answers ...
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Android. Fragment getActivity() sometimes returns null

...agment manager already has this fragment's instance and you need to get it from fragment manager and pass it to the adapter. UPDATE Also, it is a good practice when using fragments to check isAdded before getActivity() is called. This helps avoid a null pointer exception when the fragment is detac...
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Android -Starting Service at Boot Time

... Does this work if app is force closed from settings? Will the app still wakeup? – Srihari Karanth May 17 '17 at 8:21 ...
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How do I achieve the theoretical maximum of 4 FLOPs per cycle?

... Furthermore, I take no responsibility for whatever damage that may result from running this code. Notes: This code is optimized for x64. x86 doesn't have enough registers for this to compile well. This code has been tested to work well on Visual Studio 2010/2012 and GCC 4.6.ICC 11 (Intel Compile...
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Uncatchable ChuckNorrisException

...le the byte code verifier! (-Xverify:none) UPDATE 3: For those following from home, here is the full script: Create the following classes: public class ChuckNorrisException extends RuntimeException // <- Comment out this line on second compilation { public ChuckNorrisException() { } }...
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Why can't I center with margin: 0 auto?

... An inline-block covers the whole line (from left to right), so a margin left and/or right won't work here. What you need is a block, a block has borders on the left and the right so can be influenced by margins. This is how it works for me: #content { display: b...
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What is the significance of initializing direction arrays below with given values when developing ch

...bottom right is 4,4 and shown what move each index of the arrays will make from the central point, X, at 2,2.) ..... .536. .1X0. .724. ..... The way it is set up, if you do ^1 (^ being bitwise XOR) on the index you get the opposite direction - 0 and 1 are opposites, 2 and 3 are opposites and so o...
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Any reason to write the “private” keyword in C#?

...ng the question. But, some people write VB, some C++, some even F# (coming from other functional languages such as Haskell perhaps?), better than they do on C#. So, for them (and for us if we forget about it after 2 years of no c#ing) it's better if accessors are explicit. Don't undervalue the impac...
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Is it possible to have multiple styles inside a TextView?

...: (Thanks to Mark again!) mBox = new TextView(context); mBox.setText(Html.fromHtml("<b>" + title + "</b>" + "<br />" + "<small>" + description + "</small>" + "<br />" + "<small>" + DateAdded + "</small>")); For an unoffici...
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Byte[] to InputStream or OutputStream

...ByteArrayInputStream bis = new ByteArrayInputStream(source); // read bytes from bis ... ByteArrayOutputStream bos = new ByteArrayOutputStream(); // write bytes to bos ... byte[] sink = bos.toByteArray(); Assuming that you are using a JDBC driver that implements the standard JDBC Blob interface (n...