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  }