根据我要求建立小规模学生住宿管理系统的任务:
申请应当采用以目标为导向的概念,使用学生班级和公寓级,执行适当的数据领域和课程方法。 数据可以储存在收集中,即各种物体、病媒等,或储存在数据档案中,但数据库除外。
迄今为止,我与《原则和规则》合作。 我不敢肯定,这是正确的,但我给我的班子增添了哈希姆。 例:
public static Set<Apartment> listOfApartments = new HashSet<Apartment>();
// in Apartment Class)
Now that I just realized I actually need persistent collections or some solutions to actually store the data permanently.
任何建议?
If I where you I would use something such as an ArrayList to store data, especially students. Sets do not allow duplicate data so this could cause problems down the line.
关于您的数据,您应查看ObjectOutputStream,以储存您的物体和here,用于对目标Streams进行辅导。
我建议的是使用XStream rel=“nofollow”>here。 这将使你能够以可以读懂的方式储存数据(有助于分解),并使你的数据能够用不同的方案拟订语言阅读。
如果Appartment is Serializable, 则Set<Apartment> also is Serializable and doens t requires any extra work to persistent it using java. io类
为使一流能,你必须:
It is that easy
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