Java:如何在JTextField中允许按下退格键

JTextField textField = new JTextField();

textField.addKeyListener(new KeyAdapter() {
    @Override
    public void keyPressed(KeyEvent e) {
        // 检查按下的键是否是退格键
        if (e.getKeyCode() == KeyEvent.VK_BACK_SPACE) {
            // 允许按下退格键
            textField.setEditable(true);
        }
    }
});

textField.setEditable(false);

import javax.swing.*;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;

public class Main {
    public static void main(String[] args) {
        JFrame frame = new JFrame("JTextField Example");
        JTextField textField = new JTextField();
        textField.setEditable(false);
        textField.addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(KeyEvent e) {
                if (e.getKeyCode() == KeyEvent.VK_BACK_SPACE) {
                    textField.setEditable(true);
                }
            }
        });
        frame.add(textField);
        frame.setSize(300, 200);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setVisible(true);
    }
}