【 Problem description 】 Write a Book class , This class has at least name and price Two attributes . This class is to implement Comarable Interface , On the interface compareTo（） The method specifies two Book The size relationship of class instances is the price Property size relationship . In the main function , Select the appropriate collection type to store Book Class , Then create a new Book Class object , And check which objects in the collection the object is equal to .

【 Input form 】 Enter one for each line Book Class object , Names and prices are separated by commas , The input end symbol of the collection class is #, Then enter a new Book Class object .

【 Output form 】
Show search results , If you find it , It displays the information of the specific object , Did not find , Do not show .

【 The sample input 1】
input several Book,in the end #
yuwen,10
shuxue,12
yingyu,11

input a new Book:
kexue,12

【 Sample output 1】
new book:kexue as same books
shuxue,12.0

【 The sample input 2】
input several Book,in the end #
yuwen,10
shuxue,12
waiyu,11

input a new Book:
kexue,13

【 Sample output 2】
new book:kexue as same books
We can learn from ：

package Test;

import java.util.ArrayList;
import java.util.Scanner;

public class Mybook {
    
    public static void main(String[] args) {
    
        Scanner in = new Scanner(System.in);
//  Define a Book Class , Used to store books put in 
        ArrayList<Book> book = new ArrayList<>();
        System.out.println("input several Book,in the end #");
        while(true){
    // Circular judgement , And read in the stored data 
            String input =in.nextLine();
            if (input.equals("#")){
    
                break;
            }
            String[] a = input.split(",");// The title requires this as the dividing symbol , By "," The boundary information will be stored in a Array ,a[0],a[1]....
            String a1 = a[0];
            int a2 = Integer.parseInt(a[1]);// Convert to number 
            Book b = new Book();
            b.setName(a1);//set Method 
            b.setPrice(a2);
            book.add(b);// Add to dynamic array 
        }
        System.out.println("input a new Book:");
        String input1 = in.nextLine();
        String[] c = input1.split(",");
        String c1 = c[0];
        int c2 = Integer.parseInt(c[1]);
        Book b1 = new Book();
        b1.setName(c1);
        b1.setPrice(c2);
        b1.compareTo(b1,book);// Calling method 
        in.close();
    }
}
class Book implements Comarable{
    
    String name;
    double price;
    public void setName(String name) {
    
        this.name = name;
    }
    public void setPrice(int price) {
    
        this.price = price;
    }
}
// Defining interfaces , Define methods in interfaces 
interface Comarable{
    
     default void compareTo(Book b1,ArrayList<Book> books){
    
         System.out.println("new book:<"+b1.name+">as same books");
//  Loop through the dynamic array , And compare 
         for (Book book : books) {
    
             if (b1.price == book.price) {
    
                 System.out.println(book.name + "," + book.price);
             }
         }
    }
}