Form login sederhana

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

public class MyFrame
{
private JFrame layar;
private JTextField tf1;
private JLabel L1,L2;
private JButton L3,L4;
private JPasswordField psw;

public MyFrame()
{
layar= new JFrame ( "LOGIN");
L1= new JLabel ("User Name :");
L2= new JLabel ("Password :");
L3= new JButton ("OK");
L4= new JButton ("Cancel");
tf1= new JTextField(25);
JPasswordField psw = new JPasswordField(25);

Container c=layar.getContentPane();
c.setLayout (new FlowLayout());

c.add(L1);c.add(tf1);
c.add(L2);c.add(psw);
c.add(L3);c.add(L4);
layar.setSize(400,120);
layar.setVisible(true);
}


public static void main(String[] args)
{
new MyFrame();
}
}