package Chapter9;

public class TestPolymorphismCasting {
 /** Main method */
 public static void main(String[] args) {
 // Declare and initialize two objects
 Object object1 = new Circle(1);
 Object object2 = new Rectangle(1, 1);

 // Display circle and rectanlge
 displayObject(object1);
 displayObject(object2);
 }

 /** A method for displaying an object */
 public static void displayObject(Object object) {
 if (object instanceof Circle) {
 System.out.println("The circle area is " +
 ((Circle)object).getArea());
 System.out.println("The circle diameter is " +
 ((Circle)object).getDiameter());
 }
 else if (object instanceof Rectangle) {
 System.out.println("The rectangle area is " +
 ((Rectangle)object).getArea());
 }
 }
}