Circle Class Shape.java: /** * Defines a basic shape with just area * @author Hyrum D. Carroll * @version 0.2 (10/05/2020) * */ public class Shape{ private double area; public Shape(){ area = 0.0; } public Shape( double a ){ this.area = a; } public void setArea( double a ){ area = a; } public double getArea({ return area; } public String toString(0{ return "Shape:\n\tarea: "+ area; } %3D ShapeDriver.java: /** * Create a simple Circle object * @author Hyrum D. Carroll @version 0.2 (10/12/2020) * */ public class ShapeDriver{ public static void main( String[] args )X Circle cir = new Circle( ); cir.setRadius( 5.0 ); System.out.println( cir.toString() ); }
Circle Class Shape.java: /** * Defines a basic shape with just area * @author Hyrum D. Carroll * @version 0.2 (10/05/2020) * */ public class Shape{ private double area; public Shape(){ area = 0.0; } public Shape( double a ){ this.area = a; } public void setArea( double a ){ area = a; } public double getArea({ return area; } public String toString(0{ return "Shape:\n\tarea: "+ area; } %3D ShapeDriver.java: /** * Create a simple Circle object * @author Hyrum D. Carroll @version 0.2 (10/12/2020) * */ public class ShapeDriver{ public static void main( String[] args )X Circle cir = new Circle( ); cir.setRadius( 5.0 ); System.out.println( cir.toString() ); }
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
Given the code below, write a Circle class (and save it in a file named Circle.java) that inherits from the Shape class. Include in your Circle class, a single private field double radius. Also include a method void setRadius(double r) (which also sets area) and a method double getRadius() (which also returns the current radius). Change the accessibility modifier for area in the Shape class to be more appropriate for a base class. Make sure that ShapeDriver's main() method executes and produces the following output:
Shape: area: 78.53981633974483 radius: 5.0
![Circle Class
Shape.java:
/**
* Defines a basic shape with just area
*
@author Hyrum D. Carroll
@version 0.2 (10/05/2020)
*
*
*/
public class Shape{
private double area;
public Shape(){ area = 0.0; }
public Shape( double a ){ this.area = a; }
public void setArea( double a ){ area = a; }
public double getArea({ return area; }
public String toString(0{
return "Shape:\n\tarea: "+ area;
}
}
ShapeDriver.java:
/**
* Create a simple Circle object
@author Hyrum D. Carroll
@version 0.2 (10/12/2020)
*
*/
public class ShapeDriver{
public static void main( String] args ){
Circle cir = new Circle( );
cir.setRadius( 5.0 );
System.out.println( cir.toString() );
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff52b68f8-d158-4f9e-9797-1c3d6bb2ff33%2F147c3b72-a761-4bd8-8cd0-cc0fd58caf05%2Fhkjiek_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Circle Class
Shape.java:
/**
* Defines a basic shape with just area
*
@author Hyrum D. Carroll
@version 0.2 (10/05/2020)
*
*
*/
public class Shape{
private double area;
public Shape(){ area = 0.0; }
public Shape( double a ){ this.area = a; }
public void setArea( double a ){ area = a; }
public double getArea({ return area; }
public String toString(0{
return "Shape:\n\tarea: "+ area;
}
}
ShapeDriver.java:
/**
* Create a simple Circle object
@author Hyrum D. Carroll
@version 0.2 (10/12/2020)
*
*/
public class ShapeDriver{
public static void main( String] args ){
Circle cir = new Circle( );
cir.setRadius( 5.0 );
System.out.println( cir.toString() );
}
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