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10.14 (Project: Shape Hierarchy) Implement the Shape hierarchy shown in Fig. 9.3. Each Two- DimensionalShape should contain method getArea to calculate the area of the two-dimensional shape. Each ThreeDimensional Shape should have methods 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 pro- cesses all the shapes in the array, determine whether each shape is a TwoDimensionalShape or a ThreeDimensional Shape. If it's a TwoDimensionalShape, display its area. If it's a ThreeDimension- alShape, display its area and volume.

10.14 (Project: Shape Hierarchy) Implement the Shape hierarchy shown in Fig. 9.3. Each Two- DimensionalShape should contain method getArea to calculate the area of the two-dimensional shape. Each ThreeDimensional Shape should have methods 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 pro- cesses all the shapes in the array, determine whether each shape is a TwoDimensionalShape or a ThreeDimensional Shape. If it's a TwoDimensionalShape, display its area. If it's a ThreeDimension- alShape, display its area and volume.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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10.14 (Project: Shape Hierarchy) Implement the Shape hierarchy shown in Fig. 9.3. Each Two- Dimensional Shape should contain method getArea to calculate the area of the two-dimensional shape. Each ThreeDimensional Shape should have methods 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 pro- cesses all the shapes in the array, determine whether each shape is a TwoDimensional Shape or a ThreeDimensional Shape. If it's a TwoDimensional Shape, display its area. If it's a ThreeDimension- alShape, display its area and volume.
Transcribed Image Text:10.14 (Project: Shape Hierarchy) Implement the Shape hierarchy shown in Fig. 9.3. Each Two- Dimensional Shape should contain method getArea to calculate the area of the two-dimensional shape. Each ThreeDimensional Shape should have methods 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 pro- cesses all the shapes in the array, determine whether each shape is a TwoDimensional Shape or a ThreeDimensional Shape. If it's a TwoDimensional Shape, display its area. If it's a ThreeDimension- alShape, display its area and volume.
Circle TwoDimensionalShape Square Triangle Shape Sphere ThreeDimensionalShape Cube Tetrahedron
Transcribed Image Text:Circle TwoDimensionalShape Square Triangle Shape Sphere ThreeDimensionalShape Cube Tetrahedron
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