将包含字符串和整数的文本文件读入arraylist

Question

从我创建的包含字符串和数字的文本文件中扫描数据时，我收到输入不匹配异常。

我放了一个try-catch语句来尝试更好地理解错误，只是忽略它。

我的司机班：

import java.io.*;
import java.util.Scanner;
import java.util.Arrays;
import java.util.ArrayList;

public class BookShelf {

public static void main(String[] args) throws IOException{

    Scanner scan = new Scanner(new File("./src/Books.txt"));
    ArrayList<Books> books = new ArrayList<Books>();

    String author, title, publisher;
    int copyright;
    int count =0;

    try {
    while(scan.hasNext()){
        title = scan.nextLine();
        author = scan.nextLine();
        publisher = scan.nextLine();
        copyright = scan.nextInt();

        Books book = new Books(title,author,publisher,copyright);
        books.add(book);

    }
    } catch (Exception e){
        System.out.println(e);
    }


    while (count <books.size() ){
        System.out.println(books.get(count));
        count++;
    }
}
}

My Books构造函数类：

public class Books {

private String title, author, publisher;
private int copyright;

public Books(String newTitle, String newAuthor, String newPub, int newCopy ){
title = newTitle;
author = newAuthor;
publisher = newPub;
copyright = newCopy;
}
// Setters
public void setTitle(String newTitle){
    title = newTitle;
}
public void setAuthor(String newAuthor){
    author = newAuthor;
}
public void setPublisher(String newPub){
    publisher = newPub;
}
public void setCopyrightDate(int newCopy){
    copyright = newCopy;
}

// Getters
public String getTitle(){
    return title;
}
public String getAuthor(){
    return author;
}
public String getPublisher(){
    return publisher;
}
public int getCopyrightDate(){
    return copyright;
}
public String toString(){
    String result ="";
    result ="Title: "+title +"\nAuthor: "+author+"\nPublisher: "+ publisher;
    result += "\nCopyright Date: "+copyright;
    return result;
}



}

我的文字文件：

Java Software Solutions
Lewis & Loftus
Addison-Wesley
2012
Faces in Time
Lewis Aleman
Megalodon Entertainment
2012
Purple Cow
Seth Godin
Portfolio
2002

根据我的文本文件的顺序和我的while循环中的数据类型，我无法理解为什么我的代码输入不匹配。