import java.util.*;
import TennisBall;

class TennisBallCan
{

   public static void main (String[] args)
   {
      Stack can = new Stack();
      TennisBall t1 = new TennisBall ("roja");
      TennisBall t2 = new TennisBall ("verde");
      TennisBall t3 = new TennisBall ("amarilla");

      System.out.println ("Pelota" + t1.getColor() + " dentro");
      can.push (t1);
      System.out.println ("Pelota" + t2.getColor() + " dentro");
      can.push (t2);
      System.out.println ("Pelota" + t3.getColor() + " dentro");
      can.push (t3);

      System.out.println ("Contenido de la lata: " + can.size());

      System.out.println ("Color de la última pelota: " + ((TennisBall)can.peek()).getColor());
      System.out.println ("Contenido de la lata tras el análisis: " + can.size());


      for (int i=0; i<3; i++)
         System.out.println (("Pelota" + (TennisBall)can.pop()).getColor() + " ball out"); 
      System.out.println ("Contenido de la lata tras el análisis: " + can.size());
   }
}