Error comes up for  "Counter++;"
  public void counter()
{
            Actor balloon = getOneIntersectingObject(balloon.class); 
            if (balloon !=null ) 
          
        {   
            getWorld().removeObject(balloon);
            Counter++;
            example EXAMPLE = new example();
        }
}
public void act();
{
          counter();
          getWorld().addObject(example) ;
}} 
          
         
   
