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9 lines
453 B
9 lines
453 B
2 years ago
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Exercise 2.3: Implement a representation for
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rectangles in a plane. (Hint: You may want to make use of Exercise 2.2.)
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In terms of your constructors and selectors, create procedures that compute the
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perimeter and the area of a given rectangle. Now implement a different
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representation for rectangles. Can you design your system with suitable
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abstraction barriers, so that the same perimeter and area procedures will work
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using either representation?
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