我有一个关于保存自定义对象数组列表的问题。我有一个名为notitie的类:publicclassNotitieimplementsSerializable{privateStringtitel="";privateStringtype="";privateStringdatum="";publicvoidsetTitel(Stringtitel){this.titel=titel;}publicStringgetTitel(){returntitel;}publicvoidsetType(Stringtype){this.type=type;}publicStringgetType()