新建两个类:Book和MainClass。Book中有属性作者(author)、出版社
(publisher)和价格(price)。有设置价格的方法setPricO,有获取价格的方法getPricO,有销售的方法show0,当价格超过100元,打9折销售,当价格没有超过100元,原价销售。|
MainCLass中定义两个书B1和B2,B1的价格是119元,B2的价格是76元,(作者和出版社自定)输出两本书的销售信息
public class Book {
private String author;
private String publisher;
private int price;
public Book(String author, String publisher, int price) {
this.author = author;
this.publisher = publisher;
this.price = price;
}
public void setPrice(int price) {
this.price = price;
}
public int getPrice() {
return price;
}
public String show(){
return "作者:"+author+",出版社:"+publisher+",价格:"+(price>100?(int)(price*0.9):price);
}
}
public class MainClass {
public static void main(String[] args) {
Book B1=new Book("小白","清华出版社",119);
Book B2=new Book("小黑","江西出版社",76);
System.out.println(B1.show());
System.out.println(B2.show());
}
}