• A printf format reference page (cheat sheet) | printf reference for java perl ruby | devdaily.com
  Summary: This page is a printf formatting cheat sheet. I originally created this cheat sheet for my own purposes, and then thought I would share it here. A cool thing about the printf formatting syntax is that the specifiers you can use are very similar, if not identical, between several different languages, including C, C++, Java, Perl, Ruby, and others, so your knowledge is reusable, which is a good thing.
  in Development with formatting java number output print printf

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