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  • Okay, that makes sense. But those separate methods for each shape would have to be in separate classes. So why not just make one class that has all the methods in it and just call each method in that class? Commented Dec 31, 2012 at 3:48
  • @nPwn - Try it yourself ... and see what happens. Can you maintain encapsulation? How many classes needed to be changed when you decide to implement (say) a Pentagon class? Commented Dec 31, 2012 at 4:52