package src.ex4;

public class TestShapes {

public static void main(String[] args) {

Shape s1 = new Circle(5.5, "RED", false); // Upcast Circle to Shape

System.out.println(s1); // which version?

System.out.println(s1.getArea()); // which version?

System.out.println(s1.getPerimeter()); // which version?

System.out.println(s1.getColor());

System.out.println(s1.isFilled());

// System.out.println(s1.getRadius()); // ERROR: class Shape does not have getRadius() method !!!

Circle c1 = (Circle)s1; // Downcast back to Circle

System.out.println(c1);

System.out.println(c1.getArea());

System.out.println(c1.getPerimeter());

System.out.println(c1.getColor());

System.out.println(c1.isFilled());

System.out.println(c1.getRadius());

// Shape s2 = new Shape(); // ERROR: Shape is abstract; cannot be instantiated

Shape s3 = new Rectangle(1.0, 2.0, "RED", false); // Upcast

System.out.println(s3);

System.out.println(s3.getArea());

System.out.println(s3.getPerimeter());

System.out.println(s3.getColor());

// System.out.println(s3.getLength()); // ERROR: class Shape does not have getLength() method !!!

Rectangle r1 = (Rectangle)s3; // downcast

System.out.println(r1);

System.out.println(r1.getArea());

System.out.println(r1.getColor());

System.out.println(r1.getLength());

Shape s4 = new Square(6.6); // Upcast

System.out.println(s4);

System.out.println(s4.getArea());

System.out.println(s4.getColor());

// System.out.println(s4.getSide()); // ERROR: class Shape does not have getSide() method !!!

// Take note that we downcast Shape s4 to Rectangle,

// which is a superclass of Square, instead of Square

Rectangle r2 = (Rectangle)s4;

System.out.println(r2);

System.out.println(r2.getArea());

System.out.println(r2.getColor());

// System.out.println(r2.getSide()); // ERROR: class Rectangle does not have getSide() method !!!

System.out.println(r2.getLength());

// Downcast Rectangle r2 to Square

Square sq1 = (Square)r2;

System.out.println(sq1);

System.out.println(sq1.getArea());

System.out.println(sq1.getColor());

System.out.println(sq1.getSide());

System.out.println(sq1.getLength());

}

}