Abstract classes & Interfaces (Ch13) 5. See the code below and solve the following. 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 find Perimeter method defined in GeometricObject public double findPerimeter() { } return 2*radius*Math.PI; // Override the equals() method defined in the Object class public boolean equals(Circlel circle) { } return this.radius == circle.getRadius(); // Override the toString() method defined in the Object class public String toString() { } } return "[Circle] radius = " + radius; 5-1. Define a class name ComparableCircle that extends Circle and implements Comparable interface. (2 point) 5-2. Draw the UML diagram and implement the compareTo() method to compare the circles on the basis of area. (2 point) 5-3. Write a test class to find the larger of two instances of ComparableCircle objects. (1 point)
Abstract classes & Interfaces (Ch13) 5. See the code below and solve the following. 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 find Perimeter method defined in GeometricObject public double findPerimeter() { } return 2*radius*Math.PI; // Override the equals() method defined in the Object class public boolean equals(Circlel circle) { } return this.radius == circle.getRadius(); // Override the toString() method defined in the Object class public String toString() { } } return "[Circle] radius = " + radius; 5-1. Define a class name ComparableCircle that extends Circle and implements Comparable interface. (2 point) 5-2. Draw the UML diagram and implement the compareTo() method to compare the circles on the basis of area. (2 point) 5-3. Write a test class to find the larger of two instances of ComparableCircle objects. (1 point)
Chapter10: Introduction To Inheritance
Section: Chapter Questions
Problem 20RQ
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Question
![Abstract classes & Interfaces (Ch13)
5. See the code below and solve the following.
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 find Perimeter method defined in GeometricObject
public double findPerimeter() {
}
return 2*radius*Math.PI;
// Override the equals() method defined in the Object class
public boolean equals(Circlel circle) {
}
return this.radius == circle.getRadius();
// Override the toString() method defined in the Object class
public String toString() {
}
}
return "[Circle] radius = " + radius;
5-1. Define a class name ComparableCircle that extends Circle and implements Comparable
interface. (2 point)
5-2. Draw the UML diagram and implement the compareTo() method to compare the circles on
the basis of area. (2 point)
5-3. Write a test class to find the larger of two instances of ComparableCircle objects. (1 point)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1f1cff89-d0c3-401a-ba77-d9b5f81fcda4%2Fe65fcd58-64ff-4442-8d3c-bd5ba25e8250%2Fsj97ssv_processed.png&w=3840&q=75)
Transcribed Image Text:Abstract classes & Interfaces (Ch13)
5. See the code below and solve the following.
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 find Perimeter method defined in GeometricObject
public double findPerimeter() {
}
return 2*radius*Math.PI;
// Override the equals() method defined in the Object class
public boolean equals(Circlel circle) {
}
return this.radius == circle.getRadius();
// Override the toString() method defined in the Object class
public String toString() {
}
}
return "[Circle] radius = " + radius;
5-1. Define a class name ComparableCircle that extends Circle and implements Comparable
interface. (2 point)
5-2. Draw the UML diagram and implement the compareTo() method to compare the circles on
the basis of area. (2 point)
5-3. Write a test class to find the larger of two instances of ComparableCircle objects. (1 point)
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