Ejemplo n.º 1
0
 public static void main(String[] args) {
   Object[] objects = {new Triangle(5, 5), new Square(3), new Circle(3)};
   // compute areas
   for (Object o : objects) {
     if (o instanceof Triangle) {
       Triangle t = (Triangle) o;
       System.out.println(t.computeArea());
     }
     if (o instanceof Square) {
       Square s = (Square) o;
       System.out.println(s.computeArea());
     }
     if (o instanceof Circle) {
       Circle c = (Circle) o;
       System.out.println(c.computeArea());
     }
   }
 }
Ejemplo n.º 2
0
  public static void main(String[] args) {

    Object[] objects = {new Triangle(5, 5), new Square(3), new Circle(3)};
    // compute areas
    for (Object o : objects) {
      if (o instanceof Triangle) {
        System.out.println("The name of the class is : " + o.getClass().getSimpleName());
        Triangle t = (Triangle) o;
        System.out.println("Area of Triangle : " + t.computeArea());
      }
      if (o instanceof Square) {
        System.out.println("The name of the class is : " + o.getClass().getName());
        Square s = (Square) o;

        System.out.println("Area of Rectangle : " + s.computeArea());
      }
      if (o instanceof Circle) {
        Circle c = (Circle) o;
        System.out.println("The name of the class is : " + o.getClass());
        System.out.println("Area of Circle : " + c.computeArea());
      }
    }
  }