painting in swing

[c_skyscraper]

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

public class LoginScreen extends JFrame
{
	JLabel userId; 
	JTextField userIdT; 
	JButton userIdHelp;
	WelcomeLogin welcome; 
	public LoginScreen()
	{
		super("User Login Screen"); 
		Container surface = getContentPane(); 
		setSize(1024,750);
		setDefaultCloseOperation(EXIT_ON_CLOSE); 
		setLocationRelativeTo(null); 
		surface.setLayout(null);
		
		welcome = new WelcomeLogin(); 
		surface.add(welcome); 
		
		userId = new JLabel("User ID       :",JLabel.LEFT); 
		userId.setBounds(20,50,80,20);     surface.add(userId); 
		
		userIdT = new JTextField(40); 
		userIdT.setBounds(120,50,150,20);  surface.add(userIdT); 
			
		userIdHelp = new JButton("?");     
		userIdHelp.setBounds(290,50,50,20);surface.add(userIdHelp);
	}	 
	
		public static void main(String[] args)
	{
		LoginScreen login = new LoginScreen(); 
		login.setVisible(true);
	}
}

class WelcomeLogin extends JPanel
{
	public void paintComponent(Graphics g)
	{
		super.paintComponents(g);
		g.drawString("hey hi, how are you doing!",50,70);
	}
	
}

sorry forgot the problem.

here i'm using null layout. i would like to draw a string in the frame. i used jpanel and overrided paintComponent, but no display is coming???????

i feel like i'm not adding the 'welcome' object of jpanel to the frame properly, any idea.

tanx

[Ezzaral]

You haven't set any bounds for the 'welcome' panel before you add it.