class name ComparableCircle that extends Circle and implements Comparable interface. Draw the UML diagram and implement the compareTo() method to compare the circles on the basis of area. Write a test class to find the larger of two instances of ComparableCircle object
class name ComparableCircle that extends Circle and implements Comparable interface. Draw the UML diagram and implement the compareTo() method to compare the circles on the basis of area. Write a test class to find the larger of two instances of ComparableCircle object
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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Question
Define a class name ComparableCircle that extends Circle and implements Comparable interface.
Draw the UML diagram and implement the compareTo() method to compare the circles on the basis of area.
Write a test class to find the larger of two instances of ComparableCircle objects.
![class Circle {
protected double radius;
// Default constructor
public Circle() {
this(1.0);
}
// Construct circle with specified radius
public Circle(double radius) {
this.radius = radius;
}
// Getter method for radius
public double getRadius() {
return radius;
}
// Setter method for radius
public void setRadius(double radius) {
this.radius = radius;
}
// Implement the findArea method defined in GeometricObject
public double findArea() {
return radius*radius*Math.PI;
}
// Implement the findPerimeter method defined in Geometricobject
public double findPerimeter() {
return 2*radius*Math.PI;
}
// Override the equals() method defined in the Object class
public boolean equals(Circle1 circle) {
return this.radius == circle.getRadius ();
}
// Override the tostring() method defined in the Object class
public String toString() {
return "[Circle] radius = " + radius;
}
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2ec814c7-90f3-4435-9bb8-fcbab3f733ac%2F5d86c303-e313-45b4-884b-0b7d70e80138%2Fso53hto_processed.png&w=3840&q=75)
Transcribed Image Text:class Circle {
protected double radius;
// Default constructor
public Circle() {
this(1.0);
}
// Construct circle with specified radius
public Circle(double radius) {
this.radius = radius;
}
// Getter method for radius
public double getRadius() {
return radius;
}
// Setter method for radius
public void setRadius(double radius) {
this.radius = radius;
}
// Implement the findArea method defined in GeometricObject
public double findArea() {
return radius*radius*Math.PI;
}
// Implement the findPerimeter method defined in Geometricobject
public double findPerimeter() {
return 2*radius*Math.PI;
}
// Override the equals() method defined in the Object class
public boolean equals(Circle1 circle) {
return this.radius == circle.getRadius ();
}
// Override the tostring() method defined in the Object class
public String toString() {
return "[Circle] radius = " + radius;
}
}
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