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Why does Android use Java? [closed]

OK, this should really be asked to someone from Google, but I just want other opinions. 9 Answers ...
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How to properly import a selfsigned certificate into Java keystore that is available to all Java app

...ou with this or you can use: System.out.println(System.getProperty("java.home")); Copy the file JAVA_HOME\lib\security\cacerts to another folder. In Portecle click File > Open Keystore File Select the cacerts file Enter this password: changeit Click Tools > Import Trusted Certificate Browse fo...
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Should I use AppDomain.CurrentDomain.BaseDirectory or System.Environment.CurrentDirectory?

I have two exe files in the same folder, I can run exe2 from a button in exe1. Today I was observing a customer over a remote (terminal services) session and exe2 failed to run 'File not found' error, yet exe1 was in the same directory when we checked. So should I be using AppDomain.CurrentDomain.B...
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What's the easiest way to install a missing Perl module?

...ng ActivePerl on Windows, the PPM (Perl Package Manager) has much of the same functionality as CPAN.pm. Example: # ppm ppm> search net-smtp ppm> install Net-SMTP-Multipart see How do I install Perl modules? in the CPAN FAQ Many distributions ship a lot of perl modules as packages. Deb...
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How to get a json string from url?

...mind that WebClient is IDisposable, so you would probably add a using statement to this in production code. This would look like: using (WebClient wc = new WebClient()) { var json = wc.DownloadString("url"); } share ...
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Large Object Heap Fragmentation

The C#/.NET application I am working on is suffering from a slow memory leak. I have used CDB with SOS to try to determine what is happening but the data does not seem to make any sense so I was hoping one of you may have experienced this before. ...
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How to kill a child process after a given timeout in Bash?

...script that launches a child process that crashes (actually, hangs) from time to time and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not return successfu...
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Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl

...he main reason you'd do this is to decouple your code from a specific implementation of the interface. When you write your code like this: List list = new ArrayList(); the rest of your code only knows that data is of type List, which is preferable because it allows you to switch between differe...
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Fully custom validation error message with Rails

Using Rails I'm trying to get an error message like "The song field can't be empty" on save. Doing the following: 17 Answer...
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Convert number strings with commas in pandas DataFrame to float

I have a DataFrame that contains numbers as strings with commas for the thousands marker. I need to convert them to floats. ...