在你原来的基础上改了一下,这样你应该会很容易看懂的
public class Book {
String bookName;
int bookCount;
double bookPrice;
public Book(){ }
public Book( String bookName, int bookCount,double bookPrice){
this.bookName=bookName;
this.bookCount =bookCount;
this.bookPrice =bookPrice;
}
public static void main(String[] args) {
Book ha=new Book("程序设计",80,10.0);
System.out.println("书名:"+ha.bookName+"书的页数:"+ha.bookCount+"书的价格:"+ha.bookPrice);
}
} |