Please complete the following:

$$

$$Create a Main class with the main

$($

$)$

$$method which shows a menu of options for the user to choose from. It shows the following screen and calls the chosen method as listed; then the menu appears again, repeat until the user types

$3$

$$to quit:

Menu

$1$

$.$

$$Countries and Capitals

$$

$$displays a list of countries and capitals

$2$

$.$

$$Countries Info

$$

$$displays the info returned by the

$4$

$$functions of the CountryProcessor class.

$3$

$.$

$$Exit

$$

$$terminates the menu loop

$$

$$In a class called CountryList, displays all countries and their capitals in a JList

$($

e

$.$

g

$.$

$$Canada: Ottawa

$)$

$,$

$$in alphabetical order by country name. Use the data from the countries

$-$

and

$-$

capitals.txt file. When the user closes the window, show the Main.main

$($

$)$

$$menu$.$

$$

$$In a class called CountryProcessor, create a function named processCountries

$($

$)$

$$that calls all

$4$

$$functions$.$ Use the data from the countries

$-$

and

$-$

capitals.txt file.

Create a HashMap instance variable with country name as key, and its capital city name as value

$($

e

$.$

g

$.$

$"$Canada$"$: "Ottawa"

$)$

$.$

$$Use streams and filters to create the following functions which do exactly what they say. In all cases, before printing, collect the result into a java collection or local variable

$($

e

$.$

g

$.$

$$List$,$ String, Integer, etc...

$)$

:

$1$

$.$

$$printNumberOfCountries

$($

$)$

$2$

$.$

$$printLongestCapitalCity

$($

$)$

$3$

$.$

$$printShortestCountryName

$($

$)$

$4$

$.$

$$printAllCountriesStartingWith

$($

String substring

$)$

$$

$$JUnit

$$

$$create unit tests to test the above

$4$

$$functions$.$

$$

$$Create and upload

$($

as pdf

$)$

$$the UML Class diagram showing the classes with their attributes, methods and relationships.

Page

$3$

$$of

$3$

$$November

$2$

$0$

$2$

$3$

Main class

main

$($

$)$

$$

$$shows a menu of

$3$

$$options: the menu repeats until the user choice is exit.

CountryList class

$$

$$display all countries and capitals in a JList in alphabetical order by CountryName. Use countries

$-$

and

$-$

capitals.txt

CountryProcessor class

$$

$$use countries

$-$

and

$-$

capitals.txt

processCoutries

$($

$)$

$$calls

$4$

$$functions

$-$

$$HashMap instance country name

$($

key

$)$

$/$

capital city

$($

value

$)$

$-$

$$Use streams and filters to create a collection and print it

$,$

$$for each of the functions:

$-$

$$printNumberOfCountries

$($

$)$

$-$

$$printLongestCapitalCity

$($

$)$

$-$

$$printShortestCountryName

$($

$)$

$-$

$$printAllCountriesStartingWith

$($

String substring

$)$

Create Unit tests for the

$4$

$$methods$.$

Create the UML class diagram