Question

Java Programmig Enumeration Assignment.

What Will You Learn

Using enumerations to ensure data integrity and using enumerations for making business decisions.

Deliverables

• Person.java
• Student.java
• StudentAthlete.java
• App.java
• Address.java
• (Optional) AddressType.java

Contents

Using inheritance and the classes (below)

• The Person class has
  • first name
  • last name
  • age
  • hometown
  • a list of addresses
• The Student class is a person with
  • an id and
  • a major and
  • a GPA
  • Student has to call super passing the parameters for the super class constructor
• The StudentAthlete class is a student with
  • a sports (football, or track, or soccer, volleyball, etc.)and
  • a ranking (a random number between 0 and 100)
  • StudentAthlete has to call super passing the parameters for the super class constructor
• An Address class
  • a street address
  • a city
  • a country
  • a postal code
  • an address type
• AddressType can be stand alone or can be a member of the Address class
  • This should enforce data integrity by making sure an illegal type cannot be used

Create an application (main or app) that:

• Creates two people. Each person should be in a different level in the inheritance hierarchy (i.e. - One Student, One StudentAthlete)
• Add two addresses to each person, one of type LOCAL one of type PERMANENT
  • The address types should not be able to be assigned an illegal value
• For each of the two people look at each address
  • If the address is of type LOCAL
    • Print out the street address, city, country and postal code
• Uses the classes
  • App
  • Person
  • Student inheriting from person
  • StudentAthlete inheriting from student
  • Address
    • AddressType

Answer 1

Solution:

Givendata:

Please create a package name app and create following class in this package

AddressType is enum

Compile All classes and run only App class

/*******************************Person.java*******************************/

package app;

import java.util.ArrayList;
import java.util.List;

/**
* @author
*
* class Person
*/
public class Person {

   private String firstName;
   private String lastName;
   private int age;
   private String homeTown;
   private List<Address> address;

   /**
   * Default constructor to initialize instance variable to initial value
   */
   public Person() {

       this.firstName = "";
       this.lastName = "";
       this.age = 0;
       this.homeTown = "";
       this.address = new ArrayList<Address>();
   }

   /**
   * Parameterized constructor to initialize instance variables to given
   * parameters
   *
   * @param firstName
   * @param lastName
   * @param age
   * @param homeTown
   * @param address
   */
   public Person(String firstName, String lastName, int age, String homeTown, List<Address> address) {

       this.firstName = firstName;
       this.lastName = lastName;
       this.age = age;
       this.homeTown = homeTown;
       this.address = address;
   }

   // return first name
   public String getFirstName() {
       return firstName;
   }

   // set first name
   public void setFirstName(String firstName) {
       this.firstName = firstName;
   }

   // return last name
   public String getLastName() {
       return lastName;
   }

   // set last name
   public void setLastName(String lastName) {
       this.lastName = lastName;
   }

   // return age
   public int getAge() {
       return age;
   }

   // set age
   public void setAge(int age) {
       this.age = age;
   }

   // return home town
   public String getHomeTown() {
       return homeTown;
   }

   // set home town
   public void setHomeTown(String homeTown) {
       this.homeTown = homeTown;
   }

   // return address
   public List<Address> getAddress() {
       return address;
   }

   // set address
   public void setAddress(List<Address> address) {
       this.address = address;
   }

   /*
   * toString method to get the information of person
   */
   @Override
   public String toString() {
       String s = "";
       for (Address address2 : address) {

           s += address2 + "\t";
       }
       return "Name: " + firstName + " " + lastName + "\nAge: " + age + " Years\nHome Town: " + homeTown + "\nAddress: "
               + s;
   }

}// end class Person

/***********************************Address.java************************************/

package app;

/**
* @author
*
* class Address
*/
public class Address {

   /*
   * Instance variables to store the Address
   */
   private String streetAddress;
   private String city;
   private String country;
   private int postalCode;
   private AddressType type;

   /**
   * Parameterized constructor to initialize instance variables to given
   * parameters
   *
   * @param streetAddress
   * @param city
   * @param country
   * @param postalCode
   * @param type
   */
   public Address(String streetAddress, String city, String country, int postalCode, AddressType type) {
       this.streetAddress = streetAddress;
       this.city = city;
       this.country = country;
       this.postalCode = postalCode;
       this.type = type;
   }

   // return street address
   public String getStreetAddress() {
       return streetAddress;
   }

   // set street address
   public void setStreetAddress(String streetAddress) {
       this.streetAddress = streetAddress;
   }

   // return city
   public String getCity() {
       return city;
   }

   // set city
   public void setCity(String city) {
       this.city = city;
   }

   // return country
   public String getCountry() {
       return country;
   }

   // set city
   public void setCountry(String country) {
       this.country = country;
   }

   // return postal code
   public int getPostalCode() {
       return postalCode;
   }

   // set postal code
   public void setPostalCode(int postalCode) {
       this.postalCode = postalCode;
   }

   // get Address type
   public AddressType getType() {
       return type;
   }

   // set address type
   public void setType(AddressType type) {
       this.type = type;
   }

   @Override
   public String toString() {
       return streetAddress + ", " + city + ", " + country + ", " + postalCode + ", Address type: " + type.toString();
   }

}// end class Address

/*******************************************AddressType.java*****************************/

package app;

/**
* @author
*
* enum AddressType
*/
public enum AddressType {

   LOCAL, PERMANENT
}

/***************************************Student.java*****************************/

package app;

import java.util.List;

/**
* @author
*
* class Student
*/
public class Student extends Person {

   private String id;
   private String major;
   private double gpa;

   /**
   * Constructor to initialize variables
   *
   * @param firstName
   * @param lastName
   * @param age
   * @param homeTown
   * @param address
   * @param id
   * @param major
   * @param gpa
   */
   public Student(String firstName, String lastName, int age, String homeTown, List<Address> address, String id,
           String major, double gpa) {
       super(firstName, lastName, age, homeTown, address);
       this.id = id;
       this.major = major;
       this.gpa = gpa;
   }

   // return id
   public String getId() {
       return id;
   }

   // set id
   public void setId(String id) {
       this.id = id;
   }

   // return major
   public String getMajor() {
       return major;
   }

   // set major
   public void setMajor(String major) {
       this.major = major;
   }

   // get gpa
   public double getGpa() {
       return gpa;
   }

   // set gpa
   public void setGpa(double gpa) {
       this.gpa = gpa;
   }

   @Override
   public String toString() {
       return super.toString() + "\nStudnet ID: " + id + "\nMajor: " + major + "\nGPA: " + gpa;

   }

}// end class Student

/***************************************StudentAthlete.java********************************/

package app;

import java.util.List;
import java.util.Random;

/**
* @author
*
* class StudentAthlete
*/
public class StudentAthlete extends Student {

   /*
   * private data field
   */
   private String sports;
   private int ranking;

   /**
   * Constructor to initialize object with these parameters
   *
   * @param firstName
   * @param lastName
   * @param age
   * @param homeTown
   * @param address
   * @param id
   * @param major
   * @param gpa
   * @param sports
   * @param ranking
   */
   public StudentAthlete(String firstName, String lastName, int age, String homeTown, List<Address> address, String id,
           String major, double gpa, String sports) {
       super(firstName, lastName, age, homeTown, address, id, major, gpa);
       this.sports = sports;
       this.ranking = new Random().nextInt(100);
   }

   // return sport name
   public String getSports() {
       return sports;
   }

   // set sport name
   public void setSports(String sports) {
       this.sports = sports;
   }

   // return ranking
   public int getRanking() {
       return ranking;
   }

   // set ranking
   public void setRanking(int ranking) {
       this.ranking = ranking;
   }

   /*
   * toString method to get the information of Athlete Student
   */
   @Override
   public String toString() {
       return super.toString() + "\nSports: " + sports + "\nRanking: " + ranking;
   }

}// end class Athlete Student

/***************************************App.java*****************************/

package app;

import java.util.ArrayList;
import java.util.List;

/**
* @author
*
* class main App
*/
public class App {

   public static void main(String[] args) {

       // create some address object and add to list
       List<Address> address = new ArrayList<Address>();
       address.add(new Address("B-84,Bajaj Nagar", "Jaipur", "India", 302015, AddressType.LOCAL));
       address.add(new Address("MD", "SWM", "INDIA", 322028, AddressType.PERMANENT));
       // create person object
       Person p1 = new Student("Ajay", "Saini", 27, "Jaipur", address, "ST1234", "CSE", 8.8);

       // create some address object for other person and add to list
       List<Address> address1 = new ArrayList<Address>();
       address1.add(new Address("Red fort street", "Delhi", "India", 302015, AddressType.LOCAL));
       address1.add(new Address("Sawai Madhopur", "SWM", "INDIA", 322028, AddressType.PERMANENT));
       // create person object
       Person p2 = new StudentAthlete("Virat", "Kohli", 33, "SWM", address1, "ST2344", "ECE", 5.6, "Football");

       // print details of object we created
       System.out.println("Person 1 details: ");
       System.out.println(p1.toString());
       System.out.println("\nPerson 2 details: ");
       System.out.println(p2.toString());
   }
}// end class App

/*****************************output*********************************/

Person 1 details:
Name: Ajay Saini
Age: 27 Years
Home Town: Jaipur
Address: B-84,Bajaj Nagar, Jaipur, India, 302015, Address type: LOCAL   MD, SWM, INDIA, 322028, Address type: PERMANENT  
Studnet ID: ST1234
Major: CSE
GPA: 8.8

Person 2 details:
Name: Virat Kohli
Age: 33 Years
Home Town: SWM
Address: Red fort street, Delhi, India, 302015, Address type: LOCAL   Sawai Madhopur, SWM, INDIA, 322028, Address type: PERMANENT  
Studnet ID: ST2344
Major: ECE
GPA: 5.6
Sports: Football
Ranking: 27

PLEASE GIVE ME THUMBUP.......