java--登陆界面

import java.awt.*;
import javax.swing.*;
import java.util.Random;
import java.awt.event.*;
public class window extends JFrame
{   private   JButton button1;
private    JButton button2;
JTextField textbook;
JTextField textbook1;
JTextField textbook2;
ReaderListen listener;
public window()
{
init();
}
public void init()
{

JFrame s = new JFrame("登陆界面");

Container con = s.getContentPane();
s.setBounds(100, 100, 500, 500);
con.setBackground(Color.green);
s.setVisible(true);
s.setResizable(true);
s.setLayout(null);
JLabel label = new JLabel ("用户名:");
label.setBounds(80, 100, 60, 30);
s.add(label);
JLabel label1 = new JLabel("密码:");
label1.setBounds(90, 140, 60, 30);
s.add(label1);
textbook=new JTextField();
textbook.setBounds(130, 110,180, 20);
textbook1=new JTextField();
textbook1.setBounds(130, 150,180, 20);
textbook2=new JTextField();
textbook2.setBounds(130, 180,180, 20);
JLabel label2=new JLabel("验证码:");
label2.setBounds(80, 180, 50, 20);
Random rd=new Random();
int x = rd.nextInt(9000);
JLabel label3=new JLabel(Integer.toString(x+1000));
label3.setBounds(180, 210, 50, 20);

s.add(label2);
s.add(label3);
s.add(textbook);
s.add(textbook1);
s.add(textbook2);
button1=new JButton("确定");
button1.setBounds(150, 300, 60, 20);
JButton button2=new JButton("取消");
button2.setBounds(210,300, 60, 20);
s.add(button1);
s.add(button2);
listener = new ReaderListen();
listener.setb1(button1);
listener.setb2(button2);
listener.settext(textbook);
listener.settext1(textbook1);
listener.settext2(textbook2);
listener.setlabel(label3);
button1.addActionListener(listener);
button2.addActionListener(listener);

}
}

class ReaderListen implements  ActionListener
{
private   JButton b1;
private    JButton b2;
JTextField text;
JTextField text1;
JTextField text2;
JLabel l;
public void setb1(JButton b1)
{
this.b1=b1;
}
public void setb2(JButton b2)
{
this.b2=b2;
}
public void settext(JTextField text)
{
this.text = text;
}
public void settext1(JTextField text1)
{
this.text1 = text1;
}
public void settext2(JTextField text2)
{
this.text2 = text2;
}
public void setlabel(JLabel l)
{
this.l=l;
}
public void actionPerformed(ActionEvent e)
{
if(e.getActionCommand().equals(b1.getText() ))
{
if(text.getText().equals("123")&&text1.getText().equals("123")&&text2.getText().equals(l.getText()))
{
JOptionPane.showConfirmDialog(null, "登陆成功！","提醒", JOptionPane.OK_CANCEL_OPTION);
}
else
{
JOptionPane.showConfirmDialog(null, "信息有误，无法登陆","提醒", JOptionPane.OK_CANCEL_OPTION);
}
}
if(e.getActionCommand().equals(b2.getText()))
{

System.exit(0);
}

}

}
class test
{
public  static void main(String args[])
{
window s = new window();
}

}