package {
    // The @ax-actionscript-zoo-lib-Sushi class represents one of the types of food a pet can eat
    public class @ax-actionscript-zoo-lib-Sushi extends actionscript_zoo_lib_Food {
      // The amount of calories in a @ax-actionscript-zoo-lib-Sushi object, if no specific 
      // amount is indicated    
      private static var DEFAULT_CALORIES:int = 500;
      
      // Constructor
      public function @ax-actionscript-zoo-lib-Sushi (initialCalories:int = 0) {
        // If no valid calorie amount is specified...
        if (initialCalories <= 0) {
          // ...give this @ax-actionscript-zoo-lib-Sushi object the default amount
          initialCalories = @ax-actionscript-zoo-lib-Sushi.DEFAULT_CALORIES;
        }
        // Invoke the Food class constructor
        super(initialCalories);
  
        // Give this food item a name
        setName("@ax-actionscript-zoo-lib-Sushi");
      }
    }
  }