Project #1 JAVA Name: Book Inventory The program will have the following private
ID: 3902704 • Letter: P
Question
Project #1 JAVA Name: Book Inventory The program will have the following private attributes: 1. book tite 2. cover page (picture name saved in directory) 3. author 4. page count 5. ISBN The program will have the following menu and menu items: 1. File Add Book Before opening the frame Modify and Display the book you should open a dialog search frame with the ISBN field. Once you enter that value then you will open the Modify and Display book frames. In Add, Modify and Display book frame should be an image of the cover page Your program should use the class Fihserio.otder te get the book cover page image and directory, if the book cover page is not in the default images directory then your program should copy the image in your cover page's directory. Modify Book Display Book Display Inventory Exit 2. Help Help Contents About ltems menu description: Add Book-will add a new book (must verified unique ISBN) Modify Book-search should be made by ISBN then modify record . Display Book-search should be made by ISBN then display all information of the book and display cover page Display Inventory-display all books from DB (use Table component). Hel p contents- will display the help of your program. . About- will display an about window displaying each of your member team All the records or data will be saved into a DB and the cover page image into a default directoryExplanation / Answer
import java.io.PrintStream;
import java.util.StringTokenizer;
/**
* A Bookstore that sells texts to
* university students.
*/
public class BookStore {
/** The cost multiplier, which is multiplied by wholesale price of
* a book to determine what the cost of that book is. */
private double costMultiplier;
/** The sale multiplier, which is multiplied by the retail price of
* a book to determine the sale price of that book */
private double saleMultiplier;
/** The total sales amount. */
private double sales;
/** The total costs for the store inventory. */
private double costs;
/**
* Books on hand are kept in a contiguous string.
* The name of the book and the quantity are stored
* for each title in the store. The name and quantity
* are separated by a colon (":"), and each book is
* separated by a pound-sign ("#").
* For example:
* "Programming Using Java:30#Systems Analysis with UML:45# ..."
*/
private String booksOnHand;
/**
* Book reference used to access book lists and price lists
* for local university.
*/
private BookReference bookRef;
/** Constant used to separate books, and units of
* book information in the book and price lists.
*/
private static final String BOOK_DELIMITER = "#";
/** Constant used to separate individual fields
* within a unit of book information.
*/
private static final String QTY_DELIMITER = ":";
/**
* Create a new BookStore object with the
* booklists. There is no initial inventory.
* @param b The BookReference for the book and price lists for
* the curriculum at the local university.
* @param cm The cost multiplier.
* @param sm The sale multiplier.
*/
public BookStore(BookReference b, double cm, double sm) {
this.bookRef = b;
this.costMultiplier = cm;
this.saleMultiplier = sm;
this.sales = 0.0;
this.costs = 0.0;
this.booksOnHand = "";
}
/**
* Create a new BookStore object with the
* booklists and initial inventory.
* @param b the book and price lists
* for the curriculum at the local university.
* @param cm The cost multiplier.
* @param sm The sale multiplier.
* @param i The initial inventory list of books
* separated by the BOOK_DELIMITER.
*/
public BookStore(BookReference b, double cm, double sm, String i) {
this.bookRef = b;
this.costMultiplier = cm;
this.saleMultiplier = sm;
this.sales = 0.0;
this.booksOnHand = "";
// now add inventory one book at a time
StringTokenizer books = new StringTokenizer(i, BOOK_DELIMITER);
while (books.hasMoreTokens()) {
this.buyBook(books.nextToken());
}
}
/**
* Purchase a book for the bookstore.
* Only add the book if it is on a
* booklist for this year.
* Return 0.0 if the book is not
* purchased.
* Add the book to in
* Update the costs to reflect the
* cost of the new inventory.
* @param b The book to be added.
* @return The purchase price of the book
*/
public double buyBook(String b) {
if (this.bookRef.bookRequired(b)) {
this.addInventory(b);
return this.addCosts(b);
}
return 0.0;
}
/**
* Add a book into the inventory of
* books on hand.
* @param b The book to be added to the inventory.
*/
public void addInventory(String b) {
String newInventory = "";
if (this.booksOnHand.equals("")) { //first book in the store
newInventory = b + ":1";
} else { // insert the book into the current inventory list
StringTokenizer books = new StringTokenizer(this.booksOnHand,
BOOK_DELIMITER);
boolean found = false;
while (books.hasMoreTokens()) {
if (!newInventory.equals("")) {
newInventory += BOOK_DELIMITER;
}
String bookUnit = (String) books.nextToken();
if (bookUnit.substring(0, bookUnit.indexOf(QTY_DELIMITER)).equals(b)) {
// found book, now add to inventory
int qty =
Integer.parseInt
(bookUnit.substring(bookUnit.indexOf(QTY_DELIMITER) + 1)) + 1;
newInventory +=
bookUnit.substring(0, bookUnit.indexOf(QTY_DELIMITER) + 1) + qty;
found = true;
} else { // otherwise just leave book quantity as is
// and add it back to the string.
newInventory += bookUnit;
}
}
if (!found) { // add it to the end of the list
newInventory += BOOK_DELIMITER + b + ":1";
}
} // end of insert into current inventory list
this.booksOnHand = newInventory; // update the instance variable
}
/**
* Remove book b from the books on hand.
* @param b The book to be removed.
*/
public void reduceInventory(String b) {
String newInventory = "";
StringTokenizer books =
new StringTokenizer(this.booksOnHand, BOOK_DELIMITER);
while (books.hasMoreTokens()) {
String bookUnit = (String) books.nextToken();
if (bookUnit.substring(0, bookUnit.indexOf(QTY_DELIMITER)).equals(b)) {
// found book, now add to inventory
int qty =
Integer.parseInt(bookUnit.substring(bookUnit.indexOf(QTY_DELIMITER)
+ 1)) - 1;
// only put the book back on the list if the quantity is greater than 0
if (qty > 0) {
if (!newInventory.equals("")) {
newInventory += BOOK_DELIMITER;
}
newInventory +=
bookUnit.substring(0, bookUnit.indexOf(QTY_DELIMITER) + 1 ) + qty;
}
// otherwise just leave book quantity as is
// and add it back to the string.
} else {
if (!newInventory.equals("")) {
newInventory += BOOK_DELIMITER;
}
newInventory += bookUnit;
}
}
this.booksOnHand = newInventory; // update the instance variable
}
/**
* Get the wholesale value of the book b,
* calculate the cost for the bookstore, and
* add the cost to the overall store costs.
* @param b The book for which the cost is added.
* @return The purchase price of the book.
*/
public double addCosts(String b) {
double cost = this.bookRef.getWholesalePrice(b) * costMultiplier;
this.costs += cost;
return cost;
}
/**
* Sell a book from the books on hand
* update the sales to reflect the
* sale price of the book and decrement the
* quantity on hand. If the book is not
* available, the sale price is 0.0.
* @param b The book to be sold.
* @return The sale price of the book.
*/
public double sellBook(String b) {
if ( bookAvailable(b) ) {
this.reduceInventory(b);
return this.addSales(b);
}
return 0.0;
}
/**
* Determine if the book is available in
* the store inventory. If so, return true,
* otherwise, return false.
* @param b The book to be found in inventory.
* @return Whether the book is in inventory.
*/
public boolean bookAvailable(String b) {
StringTokenizer books =
new StringTokenizer(this.booksOnHand, BOOK_DELIMITER);
while (books.hasMoreTokens()) {
String bookUnit = (String) books.nextToken();
if (bookUnit.substring(0, bookUnit.indexOf(QTY_DELIMITER)).equals(b)) {
return true; // found book, return true
}
}
// if we get here, the book was not found
return false;
}
/**
* Get the wholesale value of the book b,
* calculate the sale for the bookstore, and
* add the amount to the overall store sales.
* The sale amount is equal to the retail price
* times the price multiplier.
* @param b The book for which the sale is added.
* @return The purchase price of the book.
*/
public double addSales(String b) {
double saleAmount = this.bookRef.getRetailPrice(b) * saleMultiplier;
this.sales += saleAmount;
return saleAmount;
}
/**
* Perform inventory of books in store.
* Return a list of books showing the quantity, book
* title, wholesale price, retail price, and the
* extended wholesale and retail price (created by
* multiplying the quantity times the price).
* Total the extended price to show the amount
* of money invested in inventory (total extended
* wholesale) and the expected revenue)
* @return The inventory list including cost and sale price.
*/
public String inventoryBooks() {
String inventory = "";
double saleAmt = 0.0;
double costAmt = 0.0;
String bookUnit;
int totQty = 0;
int qty;
double cost;
String book;
double salePrice;
StringTokenizer books = new StringTokenizer(booksOnHand, BOOK_DELIMITER);
while (books.hasMoreTokens()) {
bookUnit = books.nextToken();
book = bookUnit.substring(0, bookUnit.indexOf(QTY_DELIMITER));
qty = Integer.parseInt(bookUnit.substring(
bookUnit.indexOf(QTY_DELIMITER) + 1));
cost = this.bookRef.getWholesalePrice(book) * costMultiplier;
salePrice = this.bookRef.getRetailPrice(book) * saleMultiplier;
inventory += book + ", " + qty + ", " +
cost + ", " + (cost * qty) + ", " +
salePrice + ", " + (salePrice * qty) + " ";
saleAmt += (salePrice * qty);
costAmt += (cost * qty);
totQty += qty;
}
inventory += "Total: number of books: " + totQty + ", cost: " + costAmt
+ ", sale price: " + saleAmt + " ";
return inventory;
}
/** Set the cost multiplier to the new percentage.
* @param pct The new cost multiplier.
*/
public void setCostMultiplier(double pct) {
this.costMultiplier = pct;
}
/** Get the total costs for this bookstore
* @return The total costs for the bookstore.
*/
public double getCosts() {
return this.costs;
}
/** Get the total sales for this bookstore
* @return The total sales for the bookstore.
*/
public double getSales() {
return this.sales;
}
/**
* Get the inventory for this bookstore.
* @return The bookstore inventory.
*/
public String getInventory() {
return booksOnHand;
}
}
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