/** Inheritance demo.
    @author Jed Yang, 2017-04-03
*/
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 shape;
      if (choice.equals("r"))
      {
         shape = new Rectangle();
      }
      else
      {
         shape = new Circle();
      }
//      shape = new Shape();
      System.out.println(shape);
      System.out.println("area = " + shape.getArea());
      System.out.println("perimeter = " + shape.getPerimeter());
   }
}