As OSes have evolved over the years, so have the basic archetypal applications that every developer should know how to code. For old command-line environments, a common exercise was a hex dump-a program that lists the contents of a file in hexadecimal bytes. For graphical mouse-and-keyboard interfaces, calculators and notepads were popular. In a multi-touch environment like Windows 8, Id nominate two archetypal applications: photo scatter and finger paint. The photo scatter is a good way to learn how to use two fingers to scale and rotate visual objects, while finger painting involves tracking individual fingers to draw lines on the screen.
展开▼
