小编Phi*_*ong的帖子

我正在为一个静态方法做扫描仪，并发生这个异常：

Exception in thread "main" java.util.NoSuchElementException: No line found

我的修改方法倾向于从控制台获取 2 个字符串作为输入，但它不起作用。 注意：我没有使用scanner.close();

static ArrayList<Book> modBook(){
    Book tempbook = Book.searchTitle();

    if(tempbook !=null){
        Scanner sc = new Scanner(System.in);
        int i = BookList.indexOf(tempbook);

        System.out.println("Please enter title:");
        String booktitle = sc.nextLine();
        System.out.println("Please enter author:");
        String bookauthor = sc.nextLine();

        tempbook.setTitle(booktitle);
        tempbook.setAuthor(bookauthor);
        BookList.set(i, tempbook); 

    }
    return BookList;
}

我的搜索方法：

static Book searchTitle(){
    try (Scanner input = new Scanner(System.in)) {
        String booktitle;
        System.out.println("Please enter title:");
        booktitle = input.nextLine();

        for(Book b : BookList){
            if(b.getTitle() != …