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Accessible from your Account page after purchase. Requires the free QuickTime Player software.
Videos can be viewed on: Windows 8, Windows XP, Vista, 7, and all versions of Macintosh OS X including the iPad, and other platforms that support the industry standard h.264 video codec.
What app doesn't make use of saving and retrieving data? Learn two of the most common mechanisms for doing this, including working with SharedPreferences as well as the file system.