Java SE (Java Platform, Standard Edition)

Hi people, i did a little modification to the code extracted from this web: http://forums.sun.com/thread.jspa?threadID=211818&start=15&tstart=0

The default code has a JFrame itself. I'm modifying such that instead extending JFrame, i extend JPanel and then calling it from another class or from a main method that i created in the code itself which create a JFrame and append the JPanel to JFrame.

The code runs with no problem, however my JFrame isn't appearing. I had setVisible to True.

Would appreciate if someone here can help me.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.awt.image.BufferedImage;
import java.math.*;
import java.util.*;
 
public class ecg1 extends JPanel
{
	myView view = new myView();
	
	ArrayList al = new ArrayList();
 	
 	data a;
 	
 	JPanel p = new JPanel();
 
	public JPanel getECG(){
		return p;
	}  
	
	public ecg1()  
	{

	
	//p.setBounds(0,0,800,200);		
	p.add(view);
	p.setLayout(null);
	
	a = new data(al);
	
	setVisible(true);
	
		while (true)
		{		
			try
			{
				view.move_1();
				repaint();
				Thread.sleep(100);
			} catch (InterruptedException e) {}
		}
	
	}
	
	private class myView extends JPanel 
	{
		BufferedImage I;
 		Graphics2D    G;
 	 	
 		int point_s = 4;
 
		public myView()
		{ 
			setBounds(0,0,800,200); 
			I = new BufferedImage(getWidth(),getHeight(),BufferedImage.TYPE_INT_ARGB);
			G = I.createGraphics();
			G.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
			G.setColor(Color.white);
			G.fillRect(0,0,800,200);
	
		}

			public void clear(int x, int w)
			{
				G.setColor(Color.white);

				G.fillRect(x,0,w,getHeight()); 
		
			}	

			public void move_1()
			{
	
				if (al.size() < 2) return;

				G.drawImage(I,0,0,getWidth()-point_s,getHeight(),point_s,0,getWidth(),getHeight(),null);

				clear(getWidth()-point_s,point_s);
	
				G.setColor(Color.gray);
				Point p1,p2;
	
				p1 = (Point)al.get(0);
				p2 = (Point)al.get(1);

				G.drawLine(getWidth()-point_s-1,p1.y+getHeight()/2,getWidth()-1,p2.y+getHeight()/2);
	
				al.remove(0);
	
			}
 
			public void paint(Graphics g)
			{	
 				g.drawImage(I,0,0,null);
			}
	}

	private class data extends Thread
	{							 
	ArrayList d_al;
						 
		public data(ArrayList a_l)	
		{
			d_al = a_l;
			this.start();
		}
			public void run()
			{
								
				while (true)
				{		
					try
					{
						while (d_al.size() < 240)
						{	
							
							int p = (int)(Math.random() * 100); 						
						
							d_al.add(new Point(0,p-50));

						}
				
						Thread.sleep(2000);
					
					} catch (InterruptedException e) {}
				}
						 
			}
						 
	}
	
	public static void main(String[] args){
    	initGUI();     	
    } 	
    
    public static void initGUI() {
		JFrame f = new JFrame("Frame ");
		f.setSize(1200, 800);
				
		//ecg1 ecgGraph = new ecg1();
		//f.add(ecgGraph.getECG());
		
		/*I tried both above and below method, it doesn't work*/
		
		//f.add(new ecg1());
		
		f.setVisible(true);
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}	
 
}