package com.imooc.book;

public class Book {

// 私有属性：书名、作者、出版社、价格

private String bookName, writer, PublishHouse;

private double price;

// 通过构造方法实现属性赋值

public Book(String bookName, String writer, String PublishHouse, double price) {

this.bookName = bookName;

this.writer = writer;

this.PublishHouse = PublishHouse;

setPrice(price);

}

/*

* 通过公有的get/set方法实现属性的访问，其中： 1、限定图书价格必须大于10，如果无效需进行提示，并强制赋值为10 2、限定作者、书名均为只读属性

*/

public String getPublishHouse() {

return PublishHouse;

}

public void setPublishHouse(String publishHouse) {

this.PublishHouse = publishHouse;

}

public double getPrice() {

return price;

}

public void setPrice(double price) {

if (price <=10) {

System.out.println("图书的价格必须大于10元");

this.price =10;

} else

this.price = price;

}

public String getBookName() {

return bookName;

}

public String getWriter() {

return writer;

}

// 信息介绍方法，描述图书所有信息

public String info() {

String str = "书名：" + getBookName() + "\n作者：" + getWriter() + "\n出版社：" + getPublishHouse() + "\n价格:" + getPrice()+"元";

return str;

}

}

package com.imooc.book;

public class TestBook {

public static void main(String[] args) {

// //实例化对象，调用相关方法实现运行效果

Book book1=new Book("红楼梦","曹雪芹","人民文学出版社",3);

System.out.println(book1.info());

Book book2=new Book("小李飞刀","古龙","中国长安出版社",55);

System.out.println("============================");

System.out.println(book2.info());

}

}