testjpasswordfield.java

有大量的java的实例

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

public class TestJPasswordField extends JApplet implements ActionListener
{
 JLabel jl1,jl2;
 JPasswordField jp1,jp2;
 JButton commit,cancel;

 public void init()
 {
	Container c = getContentPane();
	jl1 = new JLabel("请输入您的密码：");
	jl2 = new JLabel("请再次输入密码：");
	jp1 = new JPasswordField(10);
	jp2 = new JPasswordField(10);
	commit = new JButton("确认");
	cancel = new JButton("清除");
	c.setLayout(new GridLayout(3,2));
	c.add(jl1);
	c.add(jp1);
	c.add(jl2);
	c.add(jp2);
	c.add(commit);
	c.add(cancel);
	commit.addActionListener(this);
	cancel.addActionListener(this);
 }
 public void actionPerformed(ActionEvent e)
 {
	if(e.getSource()==commit)
		if(String.valueOf(jp1.getPassword()).equals(
				String.valueOf(jp2.getPassword())))
					showStatus("密码输入成功！");
	else
		showStatus("两次输入的密码不同，请重新输入！");
		if(e.getSource()==cancel)
		{
			jp1.setText("");
			jp2.setText("");
		}
 }
}