Classes We will be enhancing the classes which we created before (changes in highlighted in yellow), as well as adding new classes for exceptions (this will hold the custom exceptions we defined). Person (No changes) This will be an abstract class. In this class we have used the concept of inheritance as the candidate class and voter class are child classes so they can access the methods of parent class. Must have the following variables: age (int) - private gender (char) - private, will hold values like M, F, TU firstName (string) - protected lastName (string) - protected political party (string) - protected, will hold values like Democrat, Republican, Non-Affiliate Must have the defined constructor: Person) Person (int age, char gender, String firstName, String lastName. String political party) Which will set the passed properties to our defined variables Will implement the following methods: getAge() - returns int getGender() - returns char Will define the following abstract methods: getFullName() - returns string Candidate This class holds the information about the candidate it will extend the class Person. Must have the following variables: voteCount (int) - private, when the class is instantiated this should default to o Must have the defined constructor: Candidate() Candidate (int age, char gender, String firstName, String lastName. String political party) Which will set the passed properties to our defined variables and super class Throws exception MinimumAgeException if candidate's age is less than 25 The message is "Candidate's age cannot be less than 25" Which will set the passed properties to our defined variables and super class Will implement the following public methods: getVoteCounto - returns int incrementVoteCount() - void, increments the yoteCount getFullName() - returns string o If the candidates firstName = "John" and lastName = "Smith" and political party is Democrat" then it returns "John Smith - D" o If the candidates firstName = "John" and lastName = "Smith" and political party is "Republican" then it returns John Smith - R" o If the candidates firstName = "John" and lastName = "Smith" and political party is "Non-Affiliate" then it returns "John Smith - NA" . Otherwise "John Smith" Voter This class will gather the information about the voter it will extend the class Person. Must have the following variables: Rub voterld (int) - private voted (boolean) - private, when the class is instantiated this should default to false Must have the defined constructor: Voter() Voter (int voterld, int age, char gender, String firstName, String lastName. String political Party) Throws exception MinimumAgeException if voter's age is less than 18 The message is "Voter's age cannot be less than 18" Which will set the passed properties to our defined variables and super class Will implement the following public methods: getVotecido - returns int hasVeted) - returns boolean voted() - void, sets the voted flag to true getFullName() - returns string-eg. firstName = "John" and lastName = "Smith" then it returns "John Smith" Voting Machine This class is used to manipulate and print the results (ie who is the winner and how many votes he/she gained). This class has crucial role in whole system Must have the following variables: candidates (Candidate[]} public, array of all candidates in the race candidates (ArrayList) public AucayList of all candidates in the race Must have the defined constructor. Veting Machine Candidate candidates[]} Voting Machine (ArrayList candidates) Throws exception Missing CandidateException when candidates is null or empty. The message will be The candidate list cannot be null or empty." Which will set the passed properties to our defined variables Will implement the following public methods: vote(Voter v, Candidate c) - void, counts vote (increments candidate count) and marks voter as voted Will throw CandidateNotFoundException if voter votes for a candidate not in the race. Message will be "Candidate does not exists in the candidates collection." We will not handle the scenario that a voter votes for a candidate not in the election vote(Voter v) - void, if voter has not voted, marks voter as voted. tally() - void, prints results and winner. For example we have the following candidates (Sam Smith - R, Joe Dean-D, Jane Doe - NA) the out print will be like Sam Smith - R has 5 votes. Joe Dean - D has 2 votes. Jane Doe - NA has 7 votes. Jane Doe - NA won with 7 votes. We will not handle the case for ties at the moment, so the first candidate to have the most votes wins. MinimumAgeException Will be in the exceptions package. This will extend Exception. Must have the defined constructor. MinimumAgeException (String message) CandidateNotFoundException Will be in the exceptions package. This will extend Exception. Must have the defined constructor: CandidateNotFoundException(String message) MissingCandidatesException Will be in the exceptions package. This will extend Exception. Must have the defined constructor. Missing CandidatesException(String message) Tests You can test your codes by compiler and execute the provided file- ElectionLab4.java You will see the printout as Tommy Scott - NA has 3 votes. King Pound - D has 4 votes. Sally Adams - R has 1 votes. King Pound - Dwon with 4 votes