Java实验：用Book类与Library类巩固面向对象、封装及关键字应用

根据您提供的实验内容，我可以给出以下示例代码来完成该实验： ``` public class Book { private String name; private String id; private double price; public Book(String name, String id, double price) { this.name = name; this.id = id; this.price = price; } public String getName() { return name; } public String getId() { return id; } public double getPrice() { return price; } } public class Library { private static int bookCount = 0; public static void main(String[] args) { Book[] books = new Book[7]; books[0] = new Book("java程序", "issn1", 35.6); books[1] = new Book("java程序", "issn2", 35.6); books[2] = new Book("java程序", "issn3", 35.6); books[3] = new Book("c语言程序设计", "issn4", 42.6); books[4] = new Book("c语言程序设计", "issn5", 42.6); books[5] = new Book(null, "issn6", 8.8); books[6] = new Book(null, "issn7", 8.0); for (int i = 0; i < books.length; i++) { if (books[i].getName() != null) { System.out.println("【书名】：" + books[i].getName()); } else { System.out.println("【书名】：null"); } System.out.println("【价格】：" + books[i].getPrice()); System.out.println("【图书编号】：" + books[i].getId()); bookCount++; } System.out.println("【本书的册数】：" + bookCount); } } ``` 以上代码只是一种实现方式，您可以根据需要进行适当的修改。希望对您有所帮助！ ######[AI写代码神器 | 1469点数解答 | 2024-04-02 10:20:41]