public class RectangleDemo2
{
  public static void main(String args[]){
    Rectangle rect, rect2;
    
/*    rect = new Rectangle();
    rect.x = 0;
    rect.y = 0;
    
    rect.w = 200;
    rect.h = 400;
    
    rect2 = new Rectangle();
    rect2.x = 0;
    rect2.y = 0;
    
    rect2.w = 50;
    rect2.h = 30;
*/

    //Constructor Demo
    rect = new Rectangle(200, 400);
    //rect x,y are 0,0 and w,h are 200, 400
    
    rect2 = new Rectangle(50, 30);
    //rect2 x,y are 0,0 and w,h are 50, 30
    
    System.out.println(rect.area());
    System.out.println(rect2.area());
    
    Rectangle r;
    //r = rect2; //aliasing!
    r = rect; //aliasing!
    System.out.println(r.area());
    
    r.h = 300;
    
    System.out.println(rect.area());
    
    System.out.println("Old Position: ("+rect.x+", "+rect.y+")");
    rect.setPosition(10, 20);
    System.out.println("New Position: ("+rect.x+", "+rect.y+")");
    
    System.out.println("New rectangle details:");
    rect.printDetails();
  }
}