Implement a shape hierarchy. you must have your superclass shape and 2 subclasse

Question

Implement a shape hierarchy. you must have your superclass shape and 2 subclasses two-dimensional shape and three-dimensional shape. Under two-dimensional shape, you have other subclasses, circle, square, and triangle. Under the three-dimensional shape you have the sphere, cube, and tetrahedron. Each two-dimensional shape should contain a method getArea to calculate the area of the two-dimensional shape. Each three-dimensional shape should have a method getArea and getVolume to calculate the surface area and volume, respectively, of the three-dimensional shape. Create a program that uses an array of shape references to objects of each concrete class in the hierarchy. The program should print a text description of the object to which each array element refers. Also, in the loop that processes all the shapes in the array, determine whether each shape is a two-dimensional shape or a three-dimensional shape. If a shape is a two-dimensional shape, display it's area. If a shape is a three-dimensional shape, display its area and volume.

Explanation / Answer

Ans:

"You must have your superclass shape and 2 subclasses two-dimensional shape and three-dimensional shape."

"Under two-dimensional shape, you have other subclasses, circle, square, and triangle."

so now circle, square, and triangle are all subclasses of 2d shape so

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