// Abstract classes -- example, page 333.

abstract class Food {
   abstract public String slogan();
}

class Pepperoni extends Food {
   public String slogan () {
     return "Great for pizza!";
   }
}

public class Dinner {

   public static void main (String[] args) {

     Pepperoni slice = new Pepperoni ();
     System.out.println (slice.slogan());
   }
}