Reports the size of this Monster. @return the size of this Monster.

Puts Monster m in this Monster's belly, as long as this Monster's belly has room and m's belly is empty. @param m the Monster to be eaten. @return tr

Displays the books of this author. The books of an author can be displayed in different ways (e.g., ascending order and descending order). Therefore,

Sorts this author's books. There are different algorithms for sorting books of an author (e.g., Insertion Sort and Selection Sort). Therefore, leaving

Sets this Parcel's location to newLocation and calls the locationChanged method. @param newLocation This Parcel's new location.

Sets this Parcel's location to newLocation and notifies its observers. @param newLocation This Parcel's new location.

Add a new observer to observe the changes to this parcel. @param observer the observer to associate with this parcel

Digests the contents of this Monster's belly. Its belly becomes empty, and the Monster burps. @return a "burp" String, with the number of u letters e

Returns true iff this Monster is equivalent to obj, meaning that they have the same name and size, and equivalent belly contents. @param obj the Obje

Set the displayer for this author.

Sets the sorter for this author.

Sorts this Author's books.

Receive update notification from parcel objects. @param sourceObject the parcel that is the object whose property has changed. @param propertyName the

Adds book to this Author's list of books. @param book a book to be added to this Author's books

Adds book to this Author's list of books. @param book a book to be added to this Author's books

Returns the string "burp", but with the "u" repeated n times. @param n number of times to repeat the "u". @return a "burp" string.

Displays a list of items.

This method is responsible for updating all the classes for which the location of the parcel is important.

Reports the population of Monsters created so far. @return the number of Monsters that have been constructed.

Sets this Author's name to name. @param name this Author's new name

Sets this Author's name to name. @param name this Author's new name

Sorts the items in list in non-decreasing order.

Constructs a new Author named name that uses sorting strategy sorter to sort books. @param name the name of the new Author @param sorter the sortin

Constructs a new Author named name @param name the name of the new Author

Constructs a new Book named title with ISBN number isbn. @param title the new Book's title @param isbn the new Book's ISBN number

Constructs a new Book named title with ISBN number isbn. @param title the new Book's title @param isbn the new Book's ISBN number

Construct a new Company with a given name. @param name This Company's name.

Construct a new Company with a given name. @param name This Company's name.

Construct a new Customer with a given name. @param name The new Customer's name.

Construct a new Customer with a given name. @param name The new Customer's name.

Creates a new Monster. @param name the name of this Monster. @param size the size of this Monster. @param bellyCapacity the number

Constructs a new Parcel with the given tracking number and location. @param trackingNumber This Parcel's tracking number. @param location This

Constructs a new Parcel with the given tracking number and location. @param trackingNumber This parcel's tracking number. @param location This

Displays items of the list in reverse order.

Displays items of the list in natural order.