package jichuti1; import java.time.LocalDate; import java.util.ArrayList; import java.util.List; /** * 读者类,包含预约功能 */ public class Reader { private String readerId; // 读者ID private String name; // 读者姓名 private List reservations; // 预约列表 public Reader(String readerId, String name) { this.readerId = readerId; this.name = name; this.reservations = new ArrayList<>(); } /** * 预约图书功能 * @param book 要预约的图书 * @param date 预约日期 * @return 预约结果 */ public Reservation reserveBook(Book book, LocalDate date) { if (!book.isAvailable()) { Reservation reservation = new Reservation( "RES" + System.currentTimeMillis(), this, book, date ); reservations.add(reservation); return reservation; } return null; } // 取消预约 public void cancelReservation(Reservation reservation) { reservations.remove(reservation); } // getter public String getReaderId() { return readerId; } public String getName() { return name; } }