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getting the screen density programmatically in android?
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534
You can get info on the display from the DisplayMetrics struct:
DisplayMetrics metrics = getRe...
How to generate a random string in Ruby
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34 characters and blazing fast: ('a'..'z').to_a.shuffle[0,8].join. Note you'll need Ruby >=1.9 to shuffle.
– fny
Jun 14 '12 at 17:35
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How to forward declare a C++ template class?
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二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...n。Version 1是21 x 21的矩阵，Version 2是 25 x 25的矩阵，Version 3是29的尺寸，每增加一个version，就会增加4的尺寸，公式是：(V-1)*4 + 21（V是版本号） 最高Version 40，(40-1)*4+21 = 177，所以最高是177 x 177 的正方形。
下面我们看看一个二维...
Django - how to create a file and save it to a model's FileField?
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Capistrano - clean up old releases
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Sharvy Ahmed
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answered Jan 23 '10 at 4:32
jcrossley3jcrossley3...
HttpURLConnection timeout settings
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I set the value to 10 minutes. However it throws me a java.net.ConnectException: Connection timed out: connect before even 2 minutes is up. ...
Convert array to JSON
I have an Array var cars = [2,3,..] which holds a few integers.
I've added a few values to the array, but I now need to send this array to a page via jQuery's .get method. How can I convert it to a JSON object for sending?
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Run Cron job every N minutes plus offset
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How to include jar files with java file and compile in command prompt
I have 3 jar files and a .java file that depends on these jar files. How do I compile the .java file with these jar files using a command prompt?
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