javaSe有一个小问题不明白

Question

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

//定义一个ArrayList集合，存储一批书籍，书籍具有书名、作者、价格三个属性，
//键盘录入一个书名时，显示该书籍的详细信息。(10分)

class Book{
    String name;
    String author;
    double price;
    public Book(String name){
        this.name = name;
    }
    public Book(String name,String author,double price){
        this.name = name ;
        this.author = author;
        this.price = price;
    }
    public boolean equals(Book b){
        return this.name==b.name;
    }
    public String toString(){
        return this.name+this.author+this.price;
    }

}
class Demo6{

    public static void main(String[] args){
        String str = null;
        ArrayList<Book> list = new ArrayList<Book>();
        list.add(new Book("三国演义","罗贯中",53.5));
        list.add(new Book("水浒传","施耐庵",54.5));
        list.add(new Book("西游记","吴承恩",60));
        list.add(new Book("红楼梦","曹雪芹、高鹗",85));
        Scanner sc = new Scanner(System.in);
        while(sc.hasNext()){
            str=sc.next();
            break;
        }

        System.out.println(str);

        System.out.println(new Book("三国演义","罗贯中",53.5).equals(new Book(str)));
    }

}

Answer 1

toString方法重写了没有？