/** Inheritance demo.
    @author Jed Yang, 2018-01-10
*/

import java.util.Scanner;
public class Geometry
{
   public static void main(String[] args)
   {
      Scanner kb = new Scanner(System.in);
      System.out.print("(r)ectangle or (c)ircle? ");
      String choice = kb.next();

      Shape rect;
      if (choice.equals("r"))
      {
         rect = new Rectangle();
      }
      else
      {
         rect = new Circle();
      }
      System.out.println(rect);
      System.out.println("area = " + rect.getArea());
      System.out.println("perimeter = " + rect.getPerimeter());
   }
}