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Command line progress bar in Java
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I have implemented this sort of thing before. Its not so much about java, but what characters to send to the console.
The key is the difference between \n and \r.
\n goes to the start of a new line. But \r is just carriage return - it goes back to the start of the same...
Is there a vim command to relocate a tab?
How can I change the position / order of my current tab in Vim ? For example, if I want to reposition my current tab to be the first tab?
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How do I create a folder in a GitHub repository?
I want to create a folder in a GitHub repository and want to add files in that folder. How do I achieve this?
11 Answers
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Can't open config file: /usr/local/ssl/openssl.cnf on Windows [duplicate]
...pt before using openssl command.
Let openssl know for sure where to find its .cfg file.
Alternatively you could set the same variable OPENSSL_CONF in the Windows environment variables.
NOTE: This can happen when using the OpenSSL binary distribution from Shining Light Productions (a compiled + i...
Cannot create an array of LinkedLists in Java…?
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You can't use generic array creation. It's a flaw/ feature of java generics.
The ways without warnings are:
Using List of Lists instead of Array of Lists:
List< List<IntegerNode>> nodeLists = new LinkedList< List< IntegerNode >>();
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Call a REST API in PHP
...ed to make a PHP call to. But as a matter of fact the documentation given with the API is very limited, so I don't really know how to call the service.
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How is Math.Pow() implemented in .NET Framework?
...rnalCall
That means that the method is actually implemented in the CLR, written in C++. The just-in-time compiler consults a table with internally implemented methods and compiles the call to the C++ function directly.
Having a look at the code requires the source code for the CLR. You can get that...
How does Google's Page Speed lossless image compression work?
When you run Google's PageSpeed plugin for Firebug/Firefox on a website it will suggest cases where an image can be losslessly compressed, and provide a link to download this smaller image.
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How do I exchange keys with values in a dictionary?
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Python 2:
res = dict((v,k) for k,v in a.iteritems())
Python 3 (thanks to @erik):
res = dict((v,k) for k,v in a.items())
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How to map atan2() to degrees 0-360
atan2(y, x) has that discontinuity at 180° where it switches to -180°..0° going clockwise.
15 Answers
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