使用从所选comboBox项目获取的对象数据填充JTextFields

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ComboBoxExample extends JFrame {
    private JComboBox<String> comboBox;
    private JTextField textField1;
    private JTextField textField2;

    public ComboBoxExample() {
        // 创建窗口和布局
        setTitle("ComboBox Example");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setLayout(new FlowLayout());

        // 创建comboBox和JTextFields
        comboBox = new JComboBox<>(new String[]{"Option 1", "Option 2", "Option 3"});
        textField1 = new JTextField(10);
        textField2 = new JTextField(10);

        // 添加事件监听器
        comboBox.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 获取所选项目的数据
                String selectedOption = (String) comboBox.getSelectedItem();

                // 填充JTextFields
                textField1.setText(selectedOption);
                textField2.setText(selectedOption);
            }
        });

        // 将comboBox和JTextFields添加到窗口中
        add(comboBox);
        add(textField1);
        add(textField2);

        // 设置窗口大小并显示
        setSize(300, 200);
        setVisible(true);
    }

    public static void main(String[] args) {
        new ComboBoxExample();
    }
}