请检查代码,谢谢!
来源:1-7 编程练习
慕少6083615
2020-06-23 02:05:14
package com.imooc.getset;
public class Book {
// 私有属性:书名、作者、出版社、价格
private String title;
private String author;
private String press;
private double price;
// 通过构造方法实现属性赋值
public Book() {
}
public Book(String title, String author, String press, double price) {
this.title=title;
this.author=author;
this.setPress(press);
this.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 getTitle() {
return title;
}
public String getAuthor() {
return author;
}
public void setPress(String press) {
this.press = press;
}
public String getPress() {
return press;
}
public void setPrice(double price) {
if (price <= 10) {
System.out.println("图书价格最低10元");
this.price = 10;
} else {
this.price = price;
}
}
public double getPrice() {
return price;
}
// 信息介绍方法,描述图书所有信息
public String intro() {
String str = "书名:" + this.getTitle() + '\n'
+ "作者:" + this.getAuthor() + '\n'
+ "出版社:"+this.getPress()+'\n'
+"价格:"+this.getPrice()+"元\n";
return str;
}
}
package com.imooc.getset;
public class BookTest {
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",1d);
System.out.println(book1.intro());
System.out.println("==========================");
Book book2=new Book("小李飞刀","古龙","中国长安出版社",55.5d);
System.out.println(book2.intro());
}
}1回答
已完成练习。棒棒哒!继续加油!
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