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How to add http:// if it doesn't exist in the URL?

How can I add http:// to a URL if it doesn't already include a protocol (e.g. http:// , https:// or ftp:// )? 8 Answe...
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How do I access my SSH public key?

I've just generated my RSA key pair, and I wanted to add that key to GitHub. 18 Answers ...
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How do I download a file over HTTP using Python?

I have a small utility that I use to download an MP3 file from a website on a schedule and then builds/updates a podcast XML file which I've added to iTunes. ...
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General suggestions for debugging in R

I get an error when using an R function that I wrote: 13 Answers 13 ...
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Why doesn't Java offer operator overloading?

Coming from C++ to Java, the obvious unanswered question is why didn't Java include operator overloading? 16 Answers ...
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UICollectionView current visible cell index

I am using UICollectionView first time in my iPad application. I have set UICollectionView such that its size and cell size is same, means only once cell is displayed at a time. ...
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How to extract filename.tar.gz file

I want to extract an archive named filename.tar.gz . 8 Answers 8 ...
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Loading/Downloading image from URL on Swift

I'd like to load an image from a URL in my application, so I first tried with Objective-C and it worked, however, with Swift, I've a compilation error: ...
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What is the difference between old style and new style classes in Python?

What is the difference between old style and new style classes in Python? When should I use one or the other? 8 Answers ...
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How do I programmatically change file permissions?

In Java, I'm dynamically creating a set of files and I'd like to change the file permissions on these files on a linux/unix file system. I'd like to be able to execute the Java equivalent of chmod . Is that possible Java 5? If so, how? ...