The zip code file contains almost $43000$ zip codes and

related information

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Close study of the file reveals that the first line contains

information about the remaining data lines

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Consider creating a small subset of this file for testing

your code $$ when everything works as you expect, then

use the full file

$$

You will create several classes based on the contents

Your top level program should populate an instance of

the ZipCodes class defined in a moment, based on the

Zip class, which is also defined shortly

Define a class Zip that has properties for zip code,

primary city, state, and type of address

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I

t should have the usual methods $($including

constructors$)$ and incorporate the Cloneable interface

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Include a method or constructor that takes a single

string $($from a line of the data file$)$ to define a new

instance of the class

Define a class called ZipCodes that contains a collection

of Zip objects, with the usual

methods

Hint: Consider using a HashMap for storing the Zips

It should also have properties for storing unique city names and

unique state names

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Include methods to

add a new Zip object and to return a

Zip object based on a string

parameter

like $91360$

Later: The method should update all related collections, e$.$g$.,$

adding a Zip object to the collection should also update the

collections for unique cities and states

nclude a method for populating the

collections

from a

file, specified by its file

name

All classes should override toString

$()$

Later: also override

equals$()$ and hashCode$()$

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Later: If a class contains at least one collection,

incorporate

the Iterable interface

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Provide meaningful Javadoc information

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Document any assumptions you make for methods and

their behavior, such as how you would handle a city or

zip that isn$$t found $$ place that documentation in the

Javadocs