1、 设计一个图书类Book，该Book类具有属性：书籍编号（bookId），书名(bookName)，作者(author)，出版单位(publisher)，单价(price)。

a) 要求属性私有，生成其共有的get/set 方法；

b) 具有方法：show（）：该方法内显示给书籍的详细信息

c) 在创建一个Book对象的同时给该对象各属性赋初值。（带参构造）

d) 编写测试类TestBook,实现创建一个Book对象book，打印出该书的详细信息。

public class Book {private String bookId;private String bookName;private String author;private String publisher;private double price;public Book(){}public Book(String bookId,String bookName,String author,String publisher,double price){this.bookId=bookId;this.bookName=bookName;this.author=author;this.publisher=publisher;this.price=price;	}public void show(){System.out.println(bookId);System.out.println(bookName);System.out.println(author);System.out.println(publisher);System.out.println(price);}public String getBookId() {return bookId;}public void setBookId(String bookId) {this.bookId = bookId;}public String getBookName() {return bookName;}public void setBookName(String bookName) {this.bookName = bookName;}public String getAuthor() {return author;}public void setAuthor(String author) {this.author = author;}public String getPublisher() {return publisher;}public void setPublisher(String publisher) {this.publisher = publisher;}public double getPrice() {return price;}public void setPrice(double price) {this.price = price;}}

 

public class BookTest extends Book {public static void main(String[] args){Book book=new Book("11111111","《《十万个为什么》》","不明","清华出版社",20);book.show();}
}