将ItemListener中的事件数据存储到ArrayList中

import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import java.util.ArrayList;

public class MyItemListener implements ItemListener {
    private ArrayList<String> eventDataList;

    public MyItemListener(ArrayList<String> eventDataList) {
        this.eventDataList = eventDataList;
    }

    @Override
    public void itemStateChanged(ItemEvent e) {
        if (e.getStateChange() == ItemEvent.SELECTED) {
            String selectedData = e.getItem().toString();
            eventDataList.add(selectedData);
        }
    }
}

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

public class Main {
    public static void main(String[] args) {
        ArrayList<String> eventDataList = new ArrayList<>();
        
        JComboBox<String> comboBox = new JComboBox<>();
        comboBox.addItem("Option 1");
        comboBox.addItem("Option 2");
        comboBox.addItemListener(new MyItemListener(eventDataList));
        
        // 其他界面组件和逻辑
        
        // 将事件数据打印出来
        for (String eventData : eventDataList) {
            System.out.println(eventData);
        }
    }
}