import java.util.Scanner;
              class Shape {
              public Shape() {
              }
              public double getPerimeter() {
              System.out.println("Perimeter calculation for generic shape.");
              return 0.0;
              }
              public double getArea() {
              System.out.println("Area calculation for generic shape.");
              return 0.0;
              }
              }
              class Circle extends Shape {
              private double radius;
              public Circle(double radius) {
              this.radius = radius;
              }
              @Override
              public double getPerimeter() {
              return 2 * Math.PI * radius;
              }
              @Override
              public double getArea() {
              return Math.PI * radius * radius;
              }
              }
              class Shapetest {
              public static void main(String[] args) {
              Scanner scanner = new Scanner(System.in);
              System.out.print("Enter the radius of the circle: ");
              double radius = scanner.nextDouble();
              Circle circle = new Circle(radius);
              System.out.println("Perimeter of the circle: " + circle.getPerimeter());
              System.out.println("Area of the circle: " + circle.getArea());
              
              scanner.close();
              }
              }