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import java.util.Scanner; class Circle { private double radius; // Parameterized constructor to set the radius public Circle(double radius) { this.radius = radius; } // Method to calculate the circumference of the circle public double calculateCircumference() { return 2 * Math.PI * radius; } // Method to calculate the area of the circle public double calculateArea() { return Math.PI * radius * radius; } } public class CircleDemo { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); // Get the radius from the user System.out.print("Enter the radius of the circle: "); double radius = scanner.nextDouble(); // Create a Circle object with the provided radius Circle circle = new Circle(radius); // Calculate and display the circumference and area System.out.println("Circumference of the circle: " + circle.calculateCircumference()); System.out.println("Area of the circle: " + circle.calculateArea()); scanner.close(); } }
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