Java的ArrayList中存储用户输入 [英] Java Arraylist to store user input

问题描述

您好我是新来的ArrayList和Java，我想知道，如果有人可以帮助我或者给我关于如何创建一个程序，它允许用户从键盘重复输入目录条目并将它们存储在一个ArrayList。指针

Hi I am new to arraylists and java and I was wondering if someone could help me or give me pointers on how to create a program that allows the user to repeatedly enter directory entries from the keyboard and store them in an arraylist.

enter name:
enter telephone number:

和然后，如果用户想要输入另一个问

and then ask if the user wants to enter another one

enter another:  Y/N

感谢

推荐答案

您还可以使用两个的ArrayList，或者使一类的名字和电话的属性，然后进行该类的对象之一的ArrayList

You can still use two ArrayLists, or make a class with name and phone attributes and then make one ArrayList of objects of that class.

这里显示的第一种方法。

First approach shown here.

import java.util.ArrayList;
import java.util.Scanner;

public class AAA {

    public static void main(String[] args) {
        ArrayList<String> name = new ArrayList<String>();
        ArrayList<Integer> phone = new ArrayList<Integer>();
        Scanner sc = new Scanner(System.in);
        while (true) {
            System.out.println("Please enter your name: ");
            name.add(sc.next());
            System.out.println("Please enter your number: ");
            phone.add(sc.nextInt());
        }
    }
}

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