/*
 * This is a really trivial example of class than can be organized
 * using the LinkedList. You should not use this. Instead,
 * you should implement your own -- something that is interesting
 * to you -- a databse of receipes, baseball players, cars, inventory 
 * record, &c.
 */

class Food implements Comparable
{
  private String name; // This is the primary key: compareTo looks at it
  private String color; // This is just an attribute. It doesn't affect order

  /*
   * It is perfectly legal to have secondary and tertiary keys, such
   * as last name, then firstname, then middle initial. If you want to 
   * do this, then the compareTo() method needs to handle them appropriately.
   */

  /*
   * This should print out your whole record in a nice, readable way
   */
  public String toString()
  {
    return name + ": " + color;
  }

  /*
   * You might want to have one or more constructors for your
   * class -- usual reasons
   */
  public Food (String name, String color)
  {
    this.name = name;
    this.color = color;
  }
 
  /*
   * This is enables the database to keep things in order
   * it actually does the comparison...
   */
  public int compareTo (Object f)
  {
    return name.compareTo(((Food)f).name);
  }
 
  /*
   * It is alwasy nice to include a .equals() method, everyone
   * will assume there is one - even if it is Comparable
   */
  public boolean equals(Object f)
  {
    return name.equals(((Food)f).name);
  }

  /*
   * This is just an example of a mutator method for the database 
   * record -- it changes the color of the food.
   */
  public void changeColor(String newColor)
  {
    color=newColor;
  }
}