Need help developing the following in Java: Create an abstract class "Shape" with the following specifications: An abstract method "surface_area ()" of return type double An abstract method "volume()" of return type double Put your code in a Java source file named "Shape.java." I. Create a class "Sphere" that extends the Shape class with the following specifications: Attributes: Radius Constructor: Implement a parameterized constructor needed to initialize the data. toString: Implement a "toString" method that prints out the surface area and volume. Implement methods to compute the surface area and volume. II. Create a class "Cylinder" that extends the Shape class with the following specifications: Attributes: Radius, height - both of type double Constructor: Implement a parameterized constructor to initialize the data. toString: Implement a "toString" method that prints out the surface area and volume. Implement methods to compute the surface area and volume. III. Create a class "Cone" that extends the Shape class with the following specifications: Attributes: Radius, height - both of type double Constructor: Implement a parameterized constructor to initialize the data. toString: Implement a "toString" method that prints out the surface area and volume. Implement methods to compute the surface area and volume. IV. Create a driver class named "ShapeArray" with the following specifications: Instantiate one sphere. Instantiate one cylinder. Instantiate one cone. Store the class instances into an array named "shapeArray." Loop through the array and print out the instance data of each object using the object instance's "toString" method.

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

Problem 1PE

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Need help developing the following in Java:

Create an abstract class "Shape" with the following specifications:

An abstract method "surface_area ()" of return type double
An abstract method "volume()" of return type double

Put your code in a Java source file named "Shape.java."

Create a class "Sphere" that extends the Shape class with the following specifications:

Attributes:
- Radius

Constructor:
- Implement a parameterized constructor needed to initialize the data.

toString:
- Implement a "toString" method that prints out the surface area and volume.

Implement methods to compute the surface area and volume.

II.

Create a class "Cylinder" that extends the Shape class with the following specifications:

Attributes:
- Radius, height - both of type double

Constructor:
- Implement a parameterized constructor to initialize the data.

toString:
- Implement a "toString" method that prints out the surface area and volume.

Implement methods to compute the surface area and volume.

III.

Create a class "Cone" that extends the Shape class with the following specifications:

Attributes:
- Radius, height - both of type double

Constructor:
- Implement a parameterized constructor to initialize the data.

toString:
- Implement a "toString" method that prints out the surface area and volume.

Implement methods to compute the surface area and volume.

IV.

Create a driver class named "ShapeArray" with the following specifications:

Instantiate one sphere.
Instantiate one cylinder.
Instantiate one cone.
Store the class instances into an array named "shapeArray."
Loop through the array and print out the instance data of each object using the object instance's "toString" method.

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