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Implement a shape hierarchy. you must have your superclass [B]shape[/B] and 2 subclasses [B]two-dimensional shape[/B] and [B]three-dimensional shape[/B]. Under two-dimensional shape, you have other subclasses, [B]circle, square, and triangle[/B]. Under the three-dimensional shape you have the [B]sphere, cube, and tetrahedron[/B]. Each two-dimensional shape should contain a method [I]getArea[/I] to calculate …
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I'm using Eclipse and even though I've done more challenging things than this I keep getting stuck no matter how hard I hammer away at it. This is a package, so the end of the first part (Driver Class?) is really what I'm having trouble with. Comments are included in … 
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