You would modify the BookStore class according to the following instructions: Ma

Question

You would modify the BookStore class according to the following instructions:

Make sure to include the Book class, BookStore and BookSearchEngine class in your NetBeans project folder.

Modify the BookStore constructor so, when a BookStore object is created it is empty.

Implement a addBook( ) method that takes a Book object as a parameter and adds the book to the library.

Implement another version of addBook( ) method that takes, the title of the book, author and price as parameters and using the values in the parameters it creates a Book object and finally adds the book to the library.

Next modify the BookSearchEngine class that has a main( ) method as per the below instructions:

Create a BookStore object

Add any five books related to java or other programming languages to the BookStore.

Demonstrate use of both the versions of the addBook( ) methods.

Finally search for all the books that has “java” (treat the keyword as case-insensitive) and display the results of the search.

Using the following

1.  

//* BookStore class
package Example09_13_15;
import java.util.ArrayList;

public class BookStore
{
private ArrayList<Book> library;

// default constructor instantiates ArrayList of Books
public BookStore( )
{
library = new ArrayList<Book>( );
library.add( new Book( "Intro to Java", "James", 56.99 ) );
library.add( new Book( "Advanced Java", "Green", 65.99 ) );
library.add( new Book( "Java Servlets", "Brown", 75.99 ) );
library.add( new Book( "Intro to HTML", "James", 29.49 ) );
library.add( new Book( "Intro to Flash", "James", 34.99 ) );
library.add( new Book( "Advanced HTML", "Green", 56.99 ) );
library.trimToSize( );
}

//** toString
public String toString( )
{
String result = "";
for( Book tempBook : library )
{
    result += tempBook.toString( ) + " ";
}
return result;
}

//** Generates list of books containing searchString
public ArrayList<Book> searchForTitle( String searchString )
{
ArrayList<Book> searchResult = new ArrayList<Book>( );
for ( Book currentBook : library )
{
   if ( ( currentBook.getTitle( ) ).indexOf( searchString ) != -1 )
        searchResult.add( currentBook );
}
searchResult.trimToSize( );
return searchResult;
}
}

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

2.

package Example09_13_15;
/* BookSearchEngine class
   Anderson, Franceschi
*/

import java.util.ArrayList;
import javax.swing.JOptionPane;

public class BookSearchEngine
{
public static void main( String [] args )
{
BookStore bs = new BookStore( );
String keyword = JOptionPane.showInputDialog( null,
                    "Enter a keyword" );
System.out.println( "Our book collection is:" );
System.out.println( bs.toString( ) );

ArrayList<Book> results = bs.searchForTitle( keyword );

System.out.println( "The search results for " + keyword
                      + " are:" );
for( Book tempBook : results )
        System.out.println( tempBook.toString( ) );
}
}

Explanation / Answer

1.

I have added required functions.

//* BookStore class
package Example09_13_15;
import java.util.ArrayList;

public class BookStore
{
   private ArrayList<Book> library;

   // default constructor instantiates ArrayList of Books
   public BookStore( ) {
       library = new ArrayList<Book>( );
   }
  
   //addBook, takes a Book object and add to list
   public void addBook(Book book){
       library.add(book);
   }
  
   //addBook, takes a Book object and add to list
       public void addBook(String title, String author, double price){
           library.add(new Book(title, author, price));
       }
   //** toString
   public String toString( )
   {
       String result = "";
       for( Book tempBook : library )
       {
           result += tempBook.toString( ) + " ";
       }
       return result;
   }

   //** Generates list of books containing searchString
   public ArrayList<Book> searchForTitle( String searchString )
   {
       ArrayList<Book> searchResult = new ArrayList<Book>( );
       for ( Book currentBook : library )
       {
           if ( ( currentBook.getTitle( ) ).indexOf( searchString ) != -1 )
               searchResult.add( currentBook );
       }
       searchResult.trimToSize( );
       return searchResult;
   }
}

---------------------------------------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------------------------------

package Example09_13_15;
/* BookSearchEngine class
   Anderson, Franceschi
*/

import java.util.ArrayList;
import javax.swing.JOptionPane;

public class BookSearchEngine
{
public static void main( String [] args )
{
BookStore bs = new BookStore( );

Book b1 = new Book( "Intro to Java", "James", 56.99 );
Book b2 = new Book( "Java Servlets", "Brown", 75.99 );
Book b3 = new Book( "Intro to HTML", "James", 29.49 );

// adding book to book store

bs.addBook(b1);
bs.addBook(b2);
bs.addBook(b3);

bs.addBook("Advanced Java", "Green", 65.99 );
bs.addBook("Advanced HTML", "Green", 56.99);
bs.addBook("Intro to Flash", "James", 34.99);

String keyword = JOptionPane.showInputDialog( null,
                    "Enter a keyword" );
System.out.println( "Our book collection is:" );
System.out.println( bs.toString( ) );

ArrayList<Book> results = bs.searchForTitle( keyword );

System.out.println( "The search results for " + keyword
                      + " are:" );
for( Book tempBook : results )
        System.out.println( tempBook.toString( ) );
}
}

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