Java code: class?Book?{
protected?String?title;
protected?String?author;
protected? String?press;
protected?double?price;
public?Book(String?title,?String?author,?String?press,?double?price)?{< /p>
this.title?=?title;
this.author?=?author;
this.press?=?press;
this.price?=?price;
}
public?String?getTitle()?{
return?this.title;
}
public?void?setTitle(String?title)?{
this.title?=?title;
}
public?String?getAuthor()?{
return?this.author;
}
public?void?setAuthor(String?author) ?{
this.author?=?author;
}
public?String?getPress()?{
return? this.press;
}
public?void?setPress(String?press)?{
this.press?=?press;
}
public?double?getPrice()?{
return?this.price;
}
public? void?setPrice(double?price)?{
this.price?=?price;
}
public?void?display()?{< /p>
System.out.println("Book?info：");
System.out.println("Title：\t"?+?title);
< p> System.out.println("Author：\t"?+?author);System.out.println("Press：\t"?+?press);
< p> System.out.println("Price：\t"?+?price);}
}
public?class?Test?{
public?static?void?main(String[]?args)?{
Book?book?=?new?Book("Big Data Technology",?"Huang Yihua" ,?"Higher Education Press",?89);
book.display();
}
}
Operation effect :
Book info:
Title: Big Data Technology
Author: Huang Yihua
Press: Higher Education Press
< p>Price: 89.0