用于存储用户输入的 Java Arraylist [英] Java Arraylist to store user input

问题描述

我是 arraylists 和 java 的新手，我想知道是否有人可以帮助我或指导我如何创建一个程序，该程序允许用户从键盘重复输入目录条目并将它们存储在 arraylist 中.

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:

然后询问用户是否要输入另一个

and then ask if the user wants to enter another one

enter another:  Y/N

谢谢

推荐答案

你仍然可以使用两个 ArrayList，或者创建一个具有 name 和 phone 属性的类，然后创建一个该类的对象的 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.

此处显示的第一种方法.

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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