Question

JAVA

Create a Governor class with the following attributes:

name : String

party - char (the character will be either D, R or I)

ageWhenElected : int

Create a State class with the following attributes:

name : String

abbreviation : String

population : long

governor : Governor

Your classes will have all setters, getters, typical methods to this point (equals(), toString()) and at least 3 constructors (1 must be the default, 1 must be the copy).

You will be turning in the UML diagram - it behooves you to diagram first.

Test your classes with hard-coded data before attempting to create the data structure from the file.

The file that we will be using to create the data structure: governerAndState.csv

The data structure will be an array of objects, NOT an ArrayList. We know that there are 50 states (we are not including US territories or the District of Columbia), so we will use a data structure that contains exactly 50 State objects.

The required operations on the data structure - these are in a services/utilities class NOT in the driver:

display all governors by name -- self-explanatory

display all governors by party --- your method will display a list of options ( Democratic, Republican or Independent) and the user will select (you may consider using JOptionPane buttons for this)

determine and display the youngest governor (when elected since that's what we know) -- self-explanatory

determine and display the oldest governor (when elected) -- self-explanatory

search by governor name, display state --- your method will request of the user a portion of a name, search all of the states for the governor's name and display the state and the state abbreviation where that governor is

change governor --- your method will allow the user to enter the state (you may go by abbreviation here) and the new governor's name, age and party --- your method will change the governor in that state

display state by population --- your method will allow the user to enter a population and display all states that have a population greater than the user request.

display state by first letter --- your method will request a letter of the user, the method will display all states that begin with that letter or a message stating that no state starts with that letter.

display all --- display all information for the state object --- the population should be well formatted, that is with commas every 3rd digit.

Deliverables (zipped)

Governor.java

State.java

StateUtilities.java

StateDriver.java

governorAndState.csv (the data file)

_______________________________________________________________________________________

((governorAndState.csv)

State,State abbreviation,population,Governor name,party,age when elected
Alabama,AL,4858979,Kay Ivey,R,73
Alaska,AK,738432,Bill Walker,I,63
Arizona,AZ,6828065,Doug Ducey,R,51
Arkansas,AR,2978204,Asa Hutchinson,R,65
California,CA,39144818,Jerry Brown,D,73
Colorado,CO,5456574,John Hickenlooper,D,59
Connecticut,CT,3590886,Dan Malloy,D,56
Delaware,DE,945934,John Carney,D,61
Florida,FL,20271272,Rick Scott,R,59
Georgia,GA,10214860,Nathan Deal,R,69
Hawaii,HI,1431603,David Ige,D,57
Idaho,ID,1654930,C.L. “Butch” Otter,R,65
Illinois,IL,12859995,Bruce Rauner,R,58
Indiana,IN,6619680,Eric Holcomb,R,49
Iowa,IA,3123899,Kim Reynolds,R,58
Kansas,KS,2911641,Jeff Colyer,R,58
Kentucky,KY,4425092,Matt Bevin,R,48
Louisiana,LA,4670724,John Bel Edwards,D,50
Maine,ME,1329328,Paul LePage,R,63
Maryland,MD,6006401,Larry Hogan,R,59
Massachusetts,MA,6794422,Charlie Baker,R,59
Michigan,MI,9922576,Rick Snyder,R,53
Minnesota,MN,5489594,Mark Dayton,D,64
Mississippi,MS,2992333,Phil Bryant,R,58
Missouri,MO,6083672,Eric Greitens,R,53
Montana,MT,1032949,Steve Bullock,D,47
Nebraska,NE,1896190,Pete Ricketts,R,51
Nevada,NV,2890845,Brian Sandoval,R,48
New Hampshire,NH,1330608,Chris Sununu,R,53
New Jersey,NJ,8958013,Phil Murphy,D,61
New Mexico,NM,2085109,Susana Martinez,R,52
New York,NY,19795791,Andrew Cuomo,D,54
North Carolina,NC,10042802,Roy Cooper,D,60
North Dakota,ND,756927,Doug Burgum,R,60
Ohio,OH,11613423,John Kasich,R,59
Oklahoma,OK,3911338,Mary Fallin,R,57
Oregon,OR,4028977,Kate Brown,D,55
Pennsylvania,PA,12802503,Tom Wolf,D,67
Rhode Island,RI,1056298,Gina Raimondo,D,44
South Carolina,SC,4896146,Henry McMaster,R,70
South Dakota,SD,858469,Dennis Daugaard,R,58
Tennessee,TN,6600299,Bill Haslam,R,53
Texas,TX,27469114,Greg Abbott,R,58
Utah,UT,2995919,Gary R. Herbert,R,62
Vermont,VT,626042,Phil Scott,R,59
Virginia,VA,8382993,Ralph Northam,D,59
Washington,WA,7170351,Jay Inslee,D,62
West Virginia,WV,1844128,Jim Justice,R,66
Wisconsin,WI,5771337,Scott Walker,R,44
Wyoming,WY,586107,Matthew Mead,R,49

Answer 1

CODE TO COPY:

Governor.java

class Governor{

private String name;

private char party;

private int ageWhenElected;

public Governor()

{

this.name="";

this.party='\0';

this.ageWhenElected=0;

}

public Governor(String name, char party, int age)

{

this.name=name;

this.party=party;

this.ageWhenElected=age;

}

public Governor(Governor g)

{

this.name=g.name;

this.ageWhenElected=g.ageWhenElected;

this.party=g.party;

}

/**

* @return the name

*/

public String getName() {

return name;

}

/**

* @param name the name to set

*/

public void setName(String name) {

this.name = name;

}

/**

* @return the party

*/

public char getParty() {

return party;

}

/**

* @param party the party to set

*/

public void setParty(char party) {

this.party = party;

}

/**

* @return the ageWhenElected

*/

public int getAgeWhenElected() {

return ageWhenElected;

}

/**

* @param ageWhenElected the ageWhenElected to set

*/

public void setAgeWhenElected(int ageWhenElected) {

this.ageWhenElected = ageWhenElected;

}

public String toString()

{

return "Governor Name: "+name+"\nParty: "+party+"\nAge when elected: "+ageWhenElected;

}

}

State.java

class State{

private String name;

private String abbreviation;

private long population;

private Governor governor;

/**

* @return the name

*/

public String getName() {

return name;

}

/**

* @param name the name to set

*/

public void setName(String name) {

this.name = name;

}

/**

* @return the abbreviation

*/

public String getAbbreviation() {

return abbreviation;

}

/**

* @param abbreviation the abbreviation to set

*/

public void setAbbreviation(String abbreviation) {

this.abbreviation = abbreviation;

}

/**

* @return the population

*/

public long getPopulation() {

return population;

}

/**

* @param population the population to set

*/

public void setPopulation(long population) {

this.population = population;

}

/**

* @return the governor

*/

public Governor getGovernor() {

return governor;

}

/**

* @param governor the governor to set

*/

public void setGovernor(Governor governor) {

this.governor = governor;

}

public String toString()

{

String pp=Long.toString(population);

String resPop="";

for(int i=0; i<pp.length(); i++)

{

if(i!=0 && i%3==0 && i!=pp.length()-1)

{

resPop+=",";

}

resPop+=pp.charAt(i);

}

return "State: "+name+"\nAbbrevaition: "+abbreviation+"\nPopulation: "+resPop+"\n"+governor.toString();

}

public State()

{

//default constructor

population=0;

name="";

abbreviation="";

}

public State(State s)

{

//copy constructor

this.name=s.name;

this.abbreviation=s.abbreviation;

this.population=s.population;

this.governor=s.governor;

}

public State(String sname, String abb, long pop, String gname, char party, int age)

{

Governor g=new Governor(gname, party, age);

this.governor=g;

this.name=sname;

this.abbreviation=abb;

this.population=pop;

}

}

StateUtilities.java

import java.util.*;

class StateUtilities

{

public void displayGovernorsByName(State array[])

{

Scanner obj=new Scanner(System.in);

System.out.println("Enter the name of the governor.");

String name=obj.nextLine();

for(int i=0; i<array.length; i++)

{

if(array[i].getGovernor().getName().equalsIgnoreCase(name))

{

System.out.println(array[i].getGovernor()+"\n");

}

}

}

public void displayGovernorsByParty(State array[])

{

Scanner obj=new Scanner(System.in);

System.out.println("Enter the party name.\nD Democratic\nR Republic\nI Independent");

char party=obj.nextLine().charAt(0);

for(int i=0; i<array.length; i++)

{

if(array[i].getGovernor().getParty() == party)

{

System.out.println(array[i].getGovernor()+"\n");

}

}

}

public void displayTheYoungestGovernor(State array[])

{

State young=array[0];

for(int i=0; i<array.length; i++)

{

if(array[i].getGovernor().getAgeWhenElected()<young.getGovernor().getAgeWhenElected())

young=array[i];

}

System.out.println(young.getGovernor());

}

public void displayTheOldestGovernor(State array[])

{

State old=array[0];

for(int i=0; i<array.length; i++)

{

if(array[i].getGovernor().getAgeWhenElected()>old.getGovernor().getAgeWhenElected())

old=array[i];

}

System.out.println(old.getGovernor());

}

public void searchByNameDisplayState(State array[])

{

System.out.println("Enter the name of the governor.");

Scanner obj=new Scanner(System.in);

String name=obj.nextLine();

System.out.printf("\n\n%30s%30s\n", "State", "Abbreviation");

for(int i=0; i<array.length; i++)

{

if(array[i].getGovernor().getName().equalsIgnoreCase(name))

{

System.out.printf("%30s%30s\n", array[i].getName(), array[i].getAbbreviation());

}

}

System.out.println();

}

public void displayStateByPopulation(State array[])

{

Scanner obj=new Scanner(System.in);

System.out.println("Enter the population of the state.");

long pop=Long.parseLong(obj.nextLine());

for(int i=0; i<array.length; i++)

{

if(array[i].getPopulation()>pop)

System.out.println(array[i]+"\n");

}

}

public void displayAll(State array[])

{

for(int i=0; i<array.length; i++)

{

System.out.println(array[i]+"\n");

}

}

public void changeGovernor(State array[])

{

Scanner obj=new Scanner(System.in);

System.out.println("Enter the abbreviation of the state.");

String ab=obj.nextLine();

State res=null;

for(int i=0; i<array.length; i++) {

if(array[i].getAbbreviation().equalsIgnoreCase(ab))

{

res=array[i];

break;

}

}

if(res==null)

System.out.println("No such state found!");

else {

System.out.println("Enter the new name.");

String name=obj.nextLine();

System.out.println("Enter the party.");

char party=obj.nextLine().charAt(0);

System.out.println("Enter the age.");

int age=Integer.parseInt(obj.nextLine());

Governor g=new Governor(name, party, age);

res.setGovernor(g);

//print the information

System.out.println("New Information: ");

System.out.println(res);

}

}

public void displayStatesByLetter(State array[])

{

Scanner obj=new Scanner(System.in);

System.out.println("Enter the first letter of the state.");

char letter=obj.nextLine().charAt(0);

boolean isFound=false;

for(int i=0; i<array.length; i++)

{

if(array[i].getName().charAt(0)==letter)

{

System.out.println(array[i]);

isFound=true;

}

}

if(!isFound)

System.out.println("No such state found!");

}

}

StateDriver.java

import java.util.*;

import java.io.*;

public class StateDriver {

public static void main(String[] args) throws FileNotFoundException {

System.out.println("\n\n----------------HARD CODED DATA TESTING-----------------------");

State s=new State("Uttar Pradesh", "UP", 10999009, "Ram Naik", 'D', 44);

System.out.println(s);

System.out.println("\n----------------TESTING ON FILE DATA-------------------\n");

State states[]=new State[50];//50 states array

//populate the array

File file=new File("governerAndState.csv");

Scanner obj=new Scanner(file);

int index=0;

while(obj.hasNextLine())

{

String line[]=obj.nextLine().split(",");//split the line by a comma

State state=new State(line[0], line[1], Long.parseLong(line[2]), line[3], line[4].charAt(0), Integer.parseInt(line[5]));

states[index++]=state;

}

//test the utilities methods

StateUtilities util=new StateUtilities();

System.out.println("\n---------------------------Testing Display all governors by name-------------------\n");

util.displayGovernorsByName(states);

System.out.println("\n---------------------------Testing Display all governors by party-------------------\n");

util.displayGovernorsByParty(states);

System.out.println("\n---------------------------Testing Display youngest governor-------------------\n");

util.displayTheYoungestGovernor(states);

System.out.println("\n---------------------------Testing Display oldest governor-------------------\n");

util.displayTheOldestGovernor(states);

System.out.println("\n---------------------------Testing Display all governors state, search by name-------------------\n");

util.searchByNameDisplayState(states);

System.out.println("\n---------------------------Testing change governor-------------------\n");

util.changeGovernor(states);

System.out.println("\n---------------------------Testing Display state by population-------------------\n");

util.displayStateByPopulation(states);

System.out.println("\n---------------------------Testing Display state by first letter-------------------\n");

util.displayStatesByLetter(states);

System.out.println("\n---------------------------Testing Display all states-------------------\n");

util.displayAll(states);

}

}

PROGRAM SCREENSHOTS:

OUTPUT: (Since the output was quite large, i have attached only a few screenshots)

In case of any doubt, do let me know in the comments section. I'll get it resolved :):) Do give a THUMBS UP!! :):)