login.java

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class Login extends JFrame {
   JTextField usernameTextField;
   JPasswordField pwdPasswordField;
   JButton submint,close;
   JLabel usenameLabel,pwdLabel;
   public Login(){
      usenameLabel=new JLabel("用户名:",JLabel.RIGHT);
      pwdLabel=new JLabel("密码:",JLabel.RIGHT);
      usernameTextField=new JTextField(10);
      pwdPasswordField=new JPasswordField(10);
      submint=new JButton("登录");
      close=new JButton("关闭");
      setLayout(new GridLayout(3,2));
      add(usenameLabel);
      add(usernameTextField);
      add(pwdLabel);
      add(pwdPasswordField);
      add(submint);
      add(close);

      setDefaultCloseOperation(EXIT_ON_CLOSE);
      setSize(260,150);
      setLocationRelativeTo(null);
      setVisible(true);
    }
    public static void main(String[] args){
        Login login=new Login();
    }

  }