import?java.awt.*;
import?java.awt.event.*;
import?javax.swing.*;

public?class?JPasswordFieldDemo?extends?Jframe?{
	JTextField?username;??//用戶名輸入框
???JPasswordField?password;??//密碼輸入框
??	JButton?logonButton;??//登錄按鈕
??	JButton?cancelButton;??//退出按鈕

???public?JPasswordFieldDemo（）?{??//構造函數

???	super（“JPasswordField演示“）;??//調用父類構造函數
???	Container?container=getContentPane（）;??//得到容器
???	container.setLayout（new?GridLayout（3?2?2?2））;??//設置布局管理器

???	username=new?JTextField（16）;??//初始化文本輸入框寬度為16列
???	password=new?JPasswordField（16）;??//初始化密碼輸入框寬度為16列
???	logonButton=new?JButton（“登錄“）;??//初始化登錄按鈕
???	logonButton.addActionListener（??//登錄按鈕事件處理
???		new?ActionListener（）{
??????	public?void?actionPerformed（ActionEvent?evt）{
??????		char[]?pw=password.getPassword（）;??//得到密碼
?????????	String?message=“您的用戶名：“+username.getText（）+“\n您的密碼：“+new?String（pw）;??//消息字符串
???			JOptionPane.showMessageDialog（JPasswordFieldDemo.this?message）;??//顯示消息
???????}
????	}）;
	???	c

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件??????105354??2004-07-21?18:59??12-1.bmp
?????文件???????99750??2004-07-21?18:59??12-2.bmp
?????文件????????1116??2004-03-31?18:31??JPasswordFieldDemo$1.class
?????文件?????????527??2004-03-31?18:31??JPasswordFieldDemo$2.class
?????文件????????1590??2004-03-31?18:31??JPasswordFieldDemo.class
?????文件????????1902??2004-04-12?22:33??JPasswordFieldDemo.java