Java Jframe问题更新Jlist使用对象的arrayList替换整个列表

JFrame frame = new JFrame("My Application");

ArrayList<String> dataList = new ArrayList<>();
dataList.add("Item 1");
dataList.add("Item 2");
dataList.add("Item 3");

JList<String> list = new JList<>(dataList.toArray(new String[0]));

frame.add(new JScrollPane(list));

import javax.swing.*;
import java.util.ArrayList;

public class MyApplication {
    public static void main(String[] args) {
        JFrame frame = new JFrame("My Application");

        ArrayList<String> dataList = new ArrayList<>();
        dataList.add("Item 1");
        dataList.add("Item 2");
        dataList.add("Item 3");

        JList<String> list = new JList<>(dataList.toArray(new String[0]));

        frame.add(new JScrollPane(list));

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(300, 200);
        frame.setVisible(true);
    }
}