Question

Write a program for the management of a bookstore in Java Programming Language, WITHOUT THE USE OF STUFF RELATING TO OBJECTS AND WHAT NOT, just arrays, strings, loops, etc. I'm in an intro to programming class so I haven't learned those techniques and am not allowed to use them.

The books we just create

Overview; Opening menu

1. List all books

2. Search all books

3. Purchase books

4. Exit

If option 1 is chosen: List all books by Title, Author, Price, Copies, Category within a group of arrays

If option 2 is chosen: Search for a specific book - Search by title, Search by author, Search by price, etc

If option 3 is chosen: List books, List shopping cart (current selected books), If book has zero copies display "This book is not in stock", otherwise Update shopping cart and display "Pay to complete the purchase", update book list

If option 4 is chosen: terminate program

Answer 1

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You
_________________

// Book.java

public class Book {
   private String title;
   private String author;
   private String category;
   private double price;
   private int noOfCopies;

   /**
   * @param title
   * @param author
   * @param category
   * @param price
   * @param noOfCopies
   */
   public Book(String title, String author, String category, double price,
           int noOfCopies) {
       this.title = title;
       this.author = author;
       this.category = category;
       this.price = price;
       this.noOfCopies = noOfCopies;
   }

   /**
   * @return the title
   */
   public String getTitle() {
       return title;
   }

   /**
   * @param title
   * the title to set
   */
   public void setTitle(String title) {
       this.title = title;
   }

   /**
   * @return the author
   */
   public String getAuthor() {
       return author;
   }

   /**
   * @param author
   * the author to set
   */
   public void setAuthor(String author) {
       this.author = author;
   }

   /**
   * @return the category
   */
   public String getCategory() {
       return category;
   }

   /**
   * @param category
   * the category to set
   */
   public void setCategory(String category) {
       this.category = category;
   }

   /**
   * @return the price
   */
   public double getPrice() {
       return price;
   }

   /**
   * @param price
   * the price to set
   */
   public void setPrice(double price) {
       this.price = price;
   }

   /**
   * @return the noOfCopies
   */
   public int getNoOfCopies() {
       return noOfCopies;
   }

   /**
   * @param noOfCopies
   * the noOfCopies to set
   */
   public void setNoOfCopies(int noOfCopies) {
       this.noOfCopies = noOfCopies;
   }

   /*
   * (non-Javadoc)
   *
   * @see java.lang.Object#toString()
   */
   @Override
   public String toString() {
       return title + " " + author + " " + category + " $" + price + " "+ noOfCopies;
   }

}
___________________________

// BookStore.java

import java.util.Scanner;

public class BookStore {
   private Book books[] = null;
   private int cnt = 0;

   /**
   * @param books
   * @param cnt
   */
   public BookStore() {
       this.books = new Book[100];
       this.cnt = 0;
   }

   public void addBook(Book b)
   {
       if(books.length!=cnt)
       {
       books[cnt]=b;
       cnt++;
       }
   }
   public void listAllBooks()
   {
       for(int i=0;i<cnt;i++)
       {
           System.out.println(books[i]);
       }
   }
   public void searchBook()
   {
int choice;
int indx=-1;
       /*
       * Creating an Scanner class object which is used to get the inputs
       * entered by the user
       */
       Scanner sc = new Scanner(System.in);
      
       System.out.println("\n1.Keyword in a book title");
       System.out.println("2.author");
       System.out.println("3.book category");
       System.out.print("Enter Chocie:");
       choice=sc.nextInt();
       sc.nextLine();
       switch(choice)
       {
       case 1:{
          
           System.out.print("Enter keyword in title :");
           String keyword=sc.next();
           for(int i=0;i<cnt;i++)
           {
           if(books[i].getTitle().contains(keyword))
           {
              
               indx=i;
           }
           }
          
           if(indx==-1)
           {
               System.out.println("** Book not found **");
           }
           else
           {
               System.out.println(books[indx]);
           }
           break;
       }
       case 2:{
           System.out.print("Enter author name :");
           String author=sc.nextLine();
           for(int i=0;i<cnt;i++)
           {
           if(books[i].getAuthor().equalsIgnoreCase(author))
           {
               indx=i;
           }
           }
          
           if(indx==-1)
           {
               System.out.println("** Book not found **");
           }
           else
           {
               System.out.println(books[indx]);
           }
           break;
       }
       case 3:{
           System.out.print("Enter book category :");
           String category=sc.next();
           for(int i=0;i<cnt;i++)
           {
           if(books[i].getCategory().equalsIgnoreCase(category))
           {
               indx=i;
           }
           }
          
           if(indx==-1)
           {
               System.out.println("** Book not found **");
           }
           else
           {
               System.out.println(books[indx]);
           }
           break;
       }
       default:{
           System.out.println("** Invalid Choice **");
           break;
       }
      
       }
      
      
   }
  
   public void purchaseBooks()
   {
       double tot=0;
       /*
       * Creating an Scanner class object which is used to get the inputs
       * entered by the user
       */
       Scanner sc = new Scanner(System.in);
      
       int shopCount=0;
       int index=0;
       Book shoppingCart[]=new Book[10];
       while(true)
       {
           for(int i=0;i<cnt;i++)
           {
               System.out.println((i+1)+" "+books[i]);
           }
           System.out.print("Enter Index of Book to purchase :");
           int choice=sc.nextInt();
          
           if(choice>=0 && choice<=cnt)
           {
               if(books[choice-1].getNoOfCopies()!=0)
               {
                   shoppingCart[shopCount]=books[choice-1];
                   books[choice-1].setNoOfCopies(books[choice-1].getNoOfCopies()-1);
                   tot+=books[choice-1].getPrice();
                   shopCount++;
                  
                   System.out.println("**Book Added to Shopping cart **");  
               }
              
              
           }
           else
           {
               System.out.println("Invalid must be between 0 - "+cnt);
           }  
          
           System.out.println("Do you want to check out (y/n):");
           char ch=sc.next(".").charAt(0);
           if(ch=='y' || ch=='Y')
           {
               break;
           }
          
                  
       }
      
       System.out.println("Total Shopping cart amount :$"+tot);
      
   }
}
_________________________________

// Test.java

import java.util.Scanner;

public class Test {

   public static void main(String[] args) {
       BookStore b=new BookStore();
       b.addBook(new Book("Let us C","Yashavant Kanetkar","Technology",23.00,10));
       b.addBook(new Book("Ansi C","Balagurusamy","Technology",20.00,10));
      
       b.addBook(new Book("The Elements of Style","Charles","Fashion",13.00,10));
      

       /*
       * Creating an Scanner class object which is used to get the inputs
       * entered by the user
       */
       Scanner sc = new Scanner(System.in);
       while(true)
       {
           System.out.println("\n1.List all books");
           System.out.println("2.Search Book");
           System.out.println("3.Purchase Book");
           System.out.println("4.Quit");
           System.out.print("Enter Choice :");
           int choice=sc.nextInt();
           switch(choice)
           {
           case 1:{
               b.listAllBooks();
               continue;
           }
           case 2:{
               b.searchBook();
               continue;
           }
           case 3:{
               b.purchaseBooks();
               continue;
           }
           case 4:{
               break;
           }
           default:{
               System.out.println("** Invalid Chocie **");
               continue;
           }
       }
           break;
       }
      
      
      

   }

}
_________________________________

Output:

1.List all books
2.Search Book
3.Purchase Book
4.Quit
Enter Choice :3
1 Let us C Yashavant Kanetkar Technology $23.0 10
2 Ansi C Balagurusamy Technology $20.0 10
3 The Elements of Style Charles Fashion $13.0 10
Enter Index of Book to purchase :3
**Book Added to Shopping cart **
Do you want to check out (y/n):
n
1 Let us C Yashavant Kanetkar Technology $23.0 10
2 Ansi C Balagurusamy Technology $20.0 10
3 The Elements of Style Charles Fashion $13.0 9
Enter Index of Book to purchase :2
**Book Added to Shopping cart **
Do you want to check out (y/n):
n
1 Let us C Yashavant Kanetkar Technology $23.0 10
2 Ansi C Balagurusamy Technology $20.0 9
3 The Elements of Style Charles Fashion $13.0 9
Enter Index of Book to purchase :1
**Book Added to Shopping cart **
Do you want to check out (y/n):
y
Total Shopping cart amount :$56.0

1.List all books
2.Search Book
3.Purchase Book
4.Quit
Enter Choice :1
Let us C Yashavant Kanetkar Technology $23.0 9
Ansi C Balagurusamy Technology $20.0 9
The Elements of Style Charles Fashion $13.0 9

1.List all books
2.Search Book
3.Purchase Book
4.Quit
Enter Choice :2
1.Keyword in a book title
2.author
3.book category
Enter Chocie:3
Enter book category :fashion
The Elements of Style Charles Fashion $13.0 9

1.List all books
2.Search Book
3.Purchase Book
4.Quit
Enter Choice :4

_______________Could you plz rate me well.Thank You