public void returnDvd(int id) throws SQLException {
List<Dvd> list = dd.findAll();
Date date = new Date();
Dvd reDvd = null;
for (int i = 0; i < list.size(); i++) {
if (list.get(i).getId() == id) {
reDvd = list.get(i);
break;
}
}
if (reDvd == null) {
System.out.println("未找到该DVD！");
} else if (reDvd.getState() == 0) {
reDvd.setReturnDvd(date);
long day = date.getTime() - reDvd.getBorrowDvd().getTime();
long money = day / 1000 / 60 / 60 / 24;
reDvd.setBorrowCount(reDvd.getBorrowCount());
reDvd.setState(1);
reDvd.setBorrowDvd(null);
dd.update(reDvd);
System.out.println("恭喜！归还DVD《" + reDvd.getName() + "》成功！");
System.out.println("共借出" + money + "天，请支付：" + money + "元！");
} else {
System.out.println("输入有误！");
}
}
public void borrowDvd(int id) throws SQLException {
List<Dvd> list = dd.findAll();
Date date = new Date();
Dvd borDvd = null;
for (int i = 0; i < list.size(); i++) {
if (list.get(i).getId() == id) {
borDvd = list.get(i);
break;
}
}
if (borDvd == null) {
System.out.println("未找到该DVD！");
} else if (borDvd.getState() == 1) {
borDvd.setBorrowDvd(date);
borDvd.setReturnDvd(null);
borDvd.setBorrowCount(borDvd.getBorrowCount() + 1);
borDvd.setState(0);
dd.update(borDvd);
System.out.println("恭喜！借出DVD《" + borDvd.getName() + "》成功！");
} else {
System.out.println("该DVD已借出，不可借！");
}
}