Question

IN JAVA:

Design a system for a bookstore that allows the owner to keep track of the store’s inventory and members. The store sells three types of products: books, CDs, and DVDs. The store offers two

types memberships to customers: regular memberships and premium memberships. The regular membership is free, while the premium members pay a fee every month. For this reason, the

store keeps track of payment method and whether the fee is paid on time for the premium members. The system should keep track of the members and how much money each has spent at

the store. The system also keeps track of the inventory of each product. Inheritance: 1. Member is extended by premium members. 2. Product is sub-classes into books, CDs, and DVDs.

User can select to: add a product, buy a product, display products, display members

Answer 1

Java Progam:

//Product.java

package bookStore;

public class Product {

private int count;

private int productID;

public Product(int pID, int noOfProduct) {

// TODO Auto-generated constructor stub

this.productID=pID;

this.count = noOfProduct;

}

public int getProductID() {

return productID;

}

public void setProductID(int productID) {

this.productID = productID;

}

public int getCount() {

return count;

}

public void setCount(int count) {

this.count = count;

}

}

//Book.java

package bookStore;

public class Book extends Product{

private String ISBN;

public Book(int pID, String bISBN, int noOfProduct) {

// TODO Auto-generated constructor stub

super(pID, noOfProduct);

this.ISBN = bISBN;

}

public String getISBN() {

return ISBN;

}

public void setISBN(String iSBN) {

ISBN = iSBN;

}

}

//CD.java

package bookStore;

public class CD extends Product{

public CD(int pID, int noOfProduct) {

super(pID, noOfProduct);

// TODO Auto-generated constructor stub

}

}

//DVD.java

package bookStore;

public class DVD extends Product{

public DVD(int pID, int noOfProduct) {

super(pID, noOfProduct);

// TODO Auto-generated constructor stub

}

}

//Member.java

package bookStore;

public class Member {

private int id;

private String firstName;

private String lastName;

private double moneySpent;

public Member(int id, String fName, String lName) {

// TODO Auto-generated constructor stub

this.id = id;

this.firstName = fName;

this.lastName = lName;

}

public int getId() {

return id;

}

public void setId(int id) {

this.id = id;

}

public String getFirstName() {

return firstName;

}

public void setFirstName(String firstName) {

this.firstName = firstName;

}

public String getLastName() {

return lastName;

}

public void setLastName(String lastName) {

this.lastName = lastName;

}

public double getMoneySpent() {

return moneySpent;

}

public void setMoneySpent(double moneySpent) {

this.moneySpent = moneySpent;

}

}

//PremiumMember.java

package bookStore;

public class PremiumMember extends Member {

public PremiumMember(int id, String fName, String lName) {

super(id, fName, lName);

// TODO Auto-generated constructor stub

}

private double feeMonthly;

private String paymentMethod;

private boolean feePaidOnTime;

public double getFeeMonthly() {

return feeMonthly;

}

public void setFeeMonthly(double feeMonthly) {

this.feeMonthly = feeMonthly;

}

public String getPaymentMethod() {

return paymentMethod;

}

public void setPaymentMethod(String paymentMethod) {

this.paymentMethod = paymentMethod;

}

public boolean isFeePaidOnTime() {

return feePaidOnTime;

}

public void setFeePaidOnTime(boolean feePaidOnTime) {

this.feePaidOnTime = feePaidOnTime;

}

}

//Store.java

package bookStore;

import java.util.ArrayList;

import java.util.Scanner;

public class Store {

public static ArrayList<Product> inventory = new ArrayList<Product>();

public static ArrayList<PremiumMember> members = new ArrayList<PremiumMember>();

public static Scanner sc = new Scanner(System.in);

private static void CreateInventory() {

// TODO Auto-generated method stub

int pID, noOfProduct;

String isBook, bISBN;

Book book;

CD cd;

DVD dvd;

System.out.println("Press Y\'y if you want to store book in inventory");

System.out.println("Press N\'n if you want to store CD in inventory");

System.out.println("Press NO\'n if you want to store DVD in inventory");

isBook = sc.next();

while(true){

System.out.println("Plese enter product id");

pID = sc.nextInt();

System.out.println("Plese enter number of product");

noOfProduct = sc.nextInt();

if(isBook.equalsIgnoreCase("Y")){

System.out.println("Plese enter book isbn number");

bISBN = sc.next();

book = new Book(pID, bISBN, noOfProduct);

inventory.add(book);

}else if(isBook.equalsIgnoreCase("N")){

cd = new CD(pID, noOfProduct);

inventory.add(cd);

}

dvd = new DVD(pID, noOfProduct);

inventory.add(dvd);

}

System.out.println("Press Y if you want to add another item in inventory");

char ch = sc.next().charAt(0);

if(ch != 'Y' || ch != 'y')

break;

}

}

private static void DistributeItem() {

// TODO Auto-generated method stub

System.out.println("Enter product id to issue");

int pID = sc.nextInt();

int pCount;

String premium = null,paymentMethod = null;

double fee = 0;

PremiumMember member;

if(findProduct(pID)){

System.out.println("Enter number of item you want");

pCount = sc.nextInt();

if(CheckInventory(pID, pCount)){

System.out.println("Plese enter Member ID");

int id = sc.nextInt();

System.out.println("Plese enter Member first Name");

String fName = sc.next();

System.out.println("Plese enter Member last Name");

String lName = sc.next();

System.out.println("Press Y\'y if you member is Premium");

member = new PremiumMember(id,fName, lName);

if(premium.equalsIgnoreCase("Y")){

System.out.println("Enter monthly fee and payment method");

member.setFeeMonthly(fee);

member.setPaymentMethod(paymentMethod);

}

members.add(member);

}

}else{

System.out.println("Item not found");

}

}

private static boolean CheckInventory(int pID, int pCount) {

// TODO Auto-generated method stub

for(Product p:inventory){

if(p.getProductID() == pID){

if(p.getCount() >= pCount){

p.setCount(p.getCount() - pCount);

return true;

}

}

}

return false;

}

private static boolean findProduct(int pID) {

// TODO Auto-generated method stub

for(Product p:inventory){

if(p.getProductID() == pID)

return true;

}

return false;

}

public static void main(String[] args) {

//Create array of product class

CreateInventory();

while(true){

//distribute item from inventory

DistributeItem();

String check;

System.out.println("Do you want to distribute more items press Y");

check = sc.next();

if(!check.equalsIgnoreCase("Y")){

break;

}

}

}

}

I hope It helps for you!!