import java.util.Scanner;



public class BookUI {

	public static int getMenuChoice(Scanner keyboard) {
	int choice;
	do{
		System.out.println("--------------"+ "\n     Menu"+ "\n--------------"+"\n1. Add a new book"+"\n2. Display all books"+"\n3. Display the cheapest book"+"\n4. Quit"+"\nEnter Your Choice ( 1 / 2 / 3 / 4 ):");
		choice=keyboard.nextInt();
	}while(choice==0 || choice>4);
		return choice;

	}


	public static void displayBook(Book book) {
		System.out.println(book.isbn+":"+ book.title+":" + book.author+":"+ book.price+" \n");
	}


	public static void displayBooks(Book[] books) {
		for(int i=0;i<books.length;i++){
			if(books[i]!=null){
			displayBook(books[i]);
			}
		}
	}

	public static Book readBook(Scanner keyboard) {


		Book returned = new Book();

		System.out.println("Enter the following attributes for your book:\n" + "Enter the isbn:\n");
			String isbn=keyboard.nextLine();
		System.out.println("Enter the title:");
			String title = keyboard.nextLine();
		System.out.println("Enter the author's name:");
			String author=keyboard.nextLine();
		System.out.println("Enter the price of the book:");
			double price=keyboard.nextDouble();

			returned.isbn=isbn;
			returned.title=title;
			returned.author=author;
			returned.price=price;

		return returned;

	}

}