从JComboBox返回对象

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

public class ComboBoxExample {
    public static void main(String[] args) {
        JFrame frame = new JFrame("ComboBox Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // 创建一个JComboBox对象，并添加选项
        JComboBox<Person> comboBox = new JComboBox<>();
        comboBox.addItem(new Person("Alice", 25));
        comboBox.addItem(new Person("Bob", 30));
        comboBox.addItem(new Person("Charlie", 35));

        // 添加监听器
        comboBox.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                // 获取选择的选项对象
                Person selectedPerson = (Person) comboBox.getSelectedItem();
                System.out.println("Selected Person: " + selectedPerson.getName() + ", Age: " + selectedPerson.getAge());
            }
        });

        frame.add(comboBox);
        frame.pack();
        frame.setVisible(true);
    }

    static class Person {
        private String name;
        private int age;

        public Person(String name, int age) {
            this.name = name;
            this.age = age;
        }

        public String getName() {
            return name;
        }

        public int getAge() {
            return age;
        }

        @Override
        public String toString() {
            return name;
        }
    }
}