      1  public class Fish

      2  {

      3     private int hungry;

      4     public static final int NOT_HUNGRY = 0;

      5     public static final int SOMEWHAT_HUNGRY = 1;

      6     public static final int VERY_HUNGRY = 2;

      7

      8     public void eat()

      9     {

     10        System.out.println("Yum!");

     11        hungry = NOT_HUNGRY;

     12     }

     13

     14     public void move()

     15     {

     16        if (hungry == VERY_HUNGRY)

     17        {

     18  	 System.out.println("Looking for food");

     19        }

     20        else

     21        {

     22  	 System.out.println("Looking for love");

     23           hungry++;

     24        }

     25     }

     26  }