MohammadJavad Rajabi - 9831025

Mohammad Javad Rajabi - 9831025/s4/Main.java

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+import java.util.ArrayList;
+import java.util.Scanner;
+
+/**
+ * The Voting program is implement an application that create voting system
+ * that can create new voting with question and choices to person can vote.
+ *
+ * @author Mohammad Javad Rajabi
+ * @version 1.0
+ * @since 2020-03-24
+ */
+public class Main {
+
+    /**
+     * This method simulate a voting system
+     * @param args
+     */
+    public static void main(String[] args){
+
+        Scanner myObj = new Scanner(System.in);
+
+        VotingSystem votingSystem = new VotingSystem();
+        Person voter_0 = new Person("Javad", "Rajabi");
+        Person voter_1 = new Person("Parsa", "Ahani");
+        Person voter_2 = new Person("Erfan", "Karimian");
+        Person voter_3 = new Person("Erfan", "Naderi");
+        Person voter_4 = new Person("Ali", "Pasyar");
+        ArrayList travel = new ArrayList();
+        ArrayList city = new ArrayList();
+        ArrayList days = new ArrayList();
+        travel.add("agree");
+        travel.add("disagree");
+        travel.add("random");
+        city.add("Isfahan");
+        city.add("Kish");
+        city.add("Gheshm");
+        city.add("Shomal");
+        city.add("Mashad");
+        city.add("random");
+        days.add("saturday");
+        days.add("sunday");
+        days.add("Thursday");
+        days.add("friday");
+        votingSystem.creatingVoting("let's go trip",0,travel);
+        votingSystem.creatingVoting("where?",0,city);
+        votingSystem.creatingVoting("when?",1,days);
+        System.out.println("print voting questions");
+        votingSystem.printVotingQuestions();
+        System.out.println("print voting");
+        votingSystem.printVoting(0);
+        ArrayList votes0_0 = new ArrayList();
+        ArrayList votes0_1 = new ArrayList();
+        ArrayList votes0_2 = new ArrayList();
+        votes0_0.add("agree");
+        votes0_1.add("random");
+        votes0_2.add("sunday");
+        votes0_2.add("friday");
+        votingSystem.vote(0,voter_0,votes0_0);
+        votingSystem.vote(1,voter_0,votes0_1);
+        votingSystem.vote(2,voter_0,votes0_2);
+        votingSystem.vote(2,voter_0,votes0_2);
+        votingSystem.vote(2,voter_1,votes0_2);
+//        myObj.next();
+        System.out.println("print result");
+        votingSystem.printResults(0);
+        votingSystem.printResults(1);
+        votingSystem.printResults(2);
+
+
+
+
+
+
+
+    }
+
+}

Mohammad Javad Rajabi - 9831025/s4/Person.java

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+import java.util.Objects;
+
+/**
+ * This class declare a person who can vote
+ *
+ * @author Mohammad Javad Rajabi
+ * @version 1.0
+ * @since 2020-03-24
+ */
+public class Person {
+
+    //fields
+
+    // first name of person who vote
+    private String firstName;
+    // last name of person who vote
+    private String lastName;
+
+
+    //constructor
+
+    /**
+     * person  constructor, for create new object of this class.
+     * @param firstName This is first name of person who vote
+     * @param lastName This is last name of person who vote
+     */
+    public Person(String firstName, String lastName) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+    }
+
+
+    //methods
+
+    /**
+     * This method is used to be able to access first name.
+     * @return String This returns first name of this person.
+     */
+    public String getFirstName() {
+        return firstName;
+    }
+
+    /**
+     * This method is used to be able to access last name.
+     * @return String This returns last name of this person.
+     */
+    public String getLastName() {
+        return lastName;
+    }
+
+    @Override
+    public String toString() {
+        return "Person{" +
+                "firstName='" + firstName + '\'' +
+                ", lastName='" + lastName + '\'' +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof Person)) return false;
+        Person person = (Person) o;
+        return getFirstName().equals(person.getFirstName()) &&
+                getLastName().equals(person.getLastName());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getFirstName(), getLastName());
+    }
+}

Mohammad Javad Rajabi - 9831025/s4/Vote.java

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+import java.util.Objects;
+
+/**
+ * This class declare vote that a person can do it.
+ *
+ * @author Mohammad Javad Rajabi
+ * @version 1.0
+ * @since 2020-03-24
+ */
+public class Vote {
+
+    //fields
+
+    // object of person type
+    private Person person;
+    // date that person vote
+    private String date;
+
+
+    //constructor
+
+    /**
+     * vote  constructor, for create new object of this class.
+     * @param person This is person who vote
+     * @param date This is date that person vote
+     */
+    public Vote(Person person, String date) {
+        this.person = person;
+        this.date = date;
+    }
+
+
+    //methods
+
+    /**
+     * This method is used to be able to access person.
+     * @return String This returns person.
+     */
+    public Person getPerson() {
+        return person;
+    }
+
+    /**
+     * This method is used to be able to access date of vote.
+     * @return String This returns date of vote.
+     */
+    public String getDate() {
+        return date;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (!(o instanceof Vote)) return false;
+        Vote vote = (Vote) o;
+        return getPerson().equals(vote.getPerson()) &&
+                getDate().equals(vote.getDate());
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(getPerson(), getDate());
+    }
+}

Mohammad Javad Rajabi - 9831025/s4/Voting.java

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+import javax.lang.model.type.NullType;
+import java.util.*;
+import ir.huri.jcal.JalaliCalendar;
+
+/**
+ * This class create a voting that have question and choices.
+ *
+ * @author Mohammad Javad Rajabi
+ * @version 1.0
+ * @since 2020-03-24
+ */
+public class Voting {
+
+    //fields
+
+    // this field declare type of voting
+    private int type;
+    // question of voting
+    private String question;
+    // list of voter
+    private ArrayList<Person> voters;
+    // list of option that map with number of vote
+    private HashMap<String, HashSet<Vote>> listOfVoteToChoices;
+
+
+    //constructor
+
+    /**
+     * Voting  constructor, for create new object of this class.
+     * @param type This is parameter that declare type of voting
+     * @param question This is question of voting
+     */
+    public Voting(int type, String question) {
+        this.type = type;
+        this.question = question;
+        voters = new ArrayList<Person>();
+        listOfVoteToChoices = new HashMap<String, HashSet<Vote>>();
+    }
+
+    //methods
+
+    /**
+     * This method is used to be able to access question.
+     * @return String This returns question of this voting.
+     */
+    public String getQuestion() {
+        return question;
+    }
+
+    /**
+     * This method is used to be able to access type of voting.
+     * @return int This returns type of this voting.
+     */
+    public int getType() {
+        return type;
+    }
+
+    /**
+     * This method is used to be able to access list of vote to choices.
+     * @return HashMap This returns list of vote to choices of this voting.
+     */
+    public HashMap<String, HashSet<Vote>> getListOfVoteToChoices() {
+        return listOfVoteToChoices;
+    }
+
+    /**
+     * This method is used to add a person to list of voter if he already voted he cant vote.
+     * @param option This parameter add to list of choices in this voting.
+     */
+    public void createChoice(String option) {
+        HashSet<Vote> set = new HashSet<Vote>();
+        listOfVoteToChoices.put(option, set);
+    }
+
+    /**
+     * This method is used to add a person to list of voter if he already voted he cant vote.
+     * @param person This is a person who want to vote.
+     * @param options This is a list of choice that person choose.
+     */
+    public void vote(Person person, ArrayList<String> options){
+        for (String option:options){
+            HashSet<Vote> votes = listOfVoteToChoices.get(option);
+            if(votes != null) {
+                for (Vote vote : votes) {
+                    if (vote.getPerson().equals(person)) {
+                        System.out.println(person.getFirstName() +" "+ person.getLastName() + " already voted");
+                        return;
+                    }
+                }
+            }
+            GregorianCalendar gc = new GregorianCalendar();
+            JalaliCalendar jalaliCalendar = new JalaliCalendar(gc);
+            Vote vote = new Vote(person, jalaliCalendar.toString());
+            HashSet<Vote> x = listOfVoteToChoices.get(option);
+            x.add(vote);
+            voters.add(person);
+            System.out.println("vote submitted!");
+        }
+    }
+
+    /**
+     * This method is used to print list of voter who vote in this voting.
+     */
+    public void getVoters() {
+        System.out.println("-------------------------------------------");
+        System.out.println("list of person who voted");
+        for (Person person: voters){
+            System.out.println((voters.indexOf(person)+1)+")"+person.getFirstName() + person.getLastName());
+        }
+        System.out.println("-------------------------------------------");
+
+    }
+
+    /**
+     * This method is used to print the choice and list of voter who vote to this choice.
+     */
+    public void printVotes() {
+        Set<String> sets = listOfVoteToChoices.keySet();
+        ArrayList<String> stringsList = new ArrayList<>(sets);
+        for (int i =0 ; i< stringsList.size() ; i++) {
+            System.out.println((i+1)+")"+ stringsList.get(i)+ "->" + listOfVoteToChoices.get(stringsList.get(i)).size());
+            for (Vote vote :listOfVoteToChoices.get(stringsList.get(i))){
+                System.out.println(vote.getPerson().getFirstName() + " " + vote.getPerson().getLastName() + "   " +
+                        vote.getDate().toString());
+            }
+            System.out.println();
+
+        }
+    }
+
+    /**
+     * This method is used to add get array list of choices.
+     * @return ArrayList This returns list of choices
+     */
+    public ArrayList<String> getChoices() {
+        Set<String> sets = listOfVoteToChoices.keySet();
+        ArrayList<String> stringsList = new ArrayList<>(sets);
+        return stringsList;
+    }
+}