public class Book {
   private String name;
   private String outhor;
   private String from;
   private double money;

   public Book() {

   }

   public Book(String name, String outhor) {
       this.name = name;
       this.outhor = outhor;

   }

   public void setFrom(String from) {
       this.from = from;
   }

   public double setMoney(double money) {
       if (money <= 10) {
           System.out.println("图书价格不得低于10.0元");
           this.money = 10.0;
       } else
           this.money = money;
       return this.money;
   }

   public String getName() {
       return name;
   }

   public String getOuthor() {
       return outhor;
   }

   public String getFrom() {
       return from;
   }

   public double getMoney() {
       return money;
   }
}

public class BookTest {
   public static void main(String[] args) {
       Book book = new Book("红楼梦", "曹雪芹");
       book.setFrom("人民文学出版社");
       book.setMoney(8.0);
       System.out.println("书名: "+book.getName());
       System.out.println("作者: "+book.getOuthor());
       System.out.println("出版社: "+book.getFrom());
       System.out.println("价格: "+book.getMoney());
       System.out.println("===============================");
       Book book1 = new Book("小李飞刀","古龙");
       book1.setFrom("中国长安出版社");
       book1.setMoney(55.5);
       System.out.println("书名: "+book1.getName());
       System.out.println("作者: "+book1.getOuthor());
       System.out.println("出版社: "+book1.getFrom());
       System.out.println("价格: "+book1.getMoney());
   }
}