使用类存储大量信息

Question

I want to get various information from the user. Eg. I want to get their forname,surname,address. I have a class to do so. But I shall be reading in alot of information of many users.

For example. User1 =; User2 =; all the way up to lets just say 200 different people.

My question is, if my class name is People. Do I have to do this everytime?(I cant see this being the only way)

People user1 = new People(joe, bloggs, world);
People user2 = new People(mary, bloggs, universe); etc.

How would I go about doing this. I was thinking of writing it out to a .txt file in that order but then I dont know how I would read it in/modify it if a user wanted to change his/her address.

EDIT:

public static ArrayList<People> person= new ArrayList<People> ();

How do I add multiple new people to the array list and how do I know which position they are in?

Can anyone help me with this or set me on the right track. Like I said Ill have to be able store alot of info and access it to modify it Thanks.

Answer 1

您需要将该类的实例添加到ArrayList中：

people.add(new Person(...));