@@ -0,0 +1,762 @@
+package com.twu.biblioteca.library;%0A%0Apublic class BookBuilder %7B%0A%0A    private int id;%0A    private String name;%0A    private String author;%0A    private String yearPublish;%0A%0A    public static BookBuilder newBook() %7B%0A        return new BookBuilder();%0A    %7D%0A%0A    public BookBuilder id(int id) %7B%0A        this.id = id;%0A        return this;%0A    %7D%0A%0A    public BookBuilder bookName(String name) %7B%0A        this.name = name;%0A        return this;%0A    %7D%0A%0A    public  BookBuilder author(String author) %7B%0A        this.author = author;%0A        return this;%0A    %7D%0A%0A    public BookBuilder yearPublish(String yearPublish) %7B%0A        this.yearPublish = yearPublish;%0A        return this;%0A    %7D%0A%0A    public Book build() %7B%0A        return new Book(id, name, author, yearPublish);%0A    %7D%0A%0A%7D%0A

modify Book Class and create Book Builder