java如何获得可编辑组合框文本
来源:百度知道 编辑:UC知道 时间:2024/05/22 00:19:33
package com.GUI;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
public class QQLogin extends JFrame implements ActionListener {
private static final long serialVersionUID = 1L;
JLabel lb1, lb2;
JComboBox username;
JPasswordField pwd;
JButton btnOk, btnCan;
JPanel p;
public QQLogin() {
init();
}
public void init() {
lb1 = new JLabel("用户名:");
lb2 = new JLabel("密码");
username = new JComboBox();
username.addItem("请输入你的QQ号");
username.addItem("111111");
username.addItem("111112");
username.addItem("111113");
username.addItem("111114");
username.setEditable(true);
pwd = new JPasswordField(10);
btnOk = new JButton("登陆");
btnOk.addActionListener(this);
btnCan = new J