Ajuda com JTable

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JTextField;


public class Aplic extends JFrame {

	
	private static final long serialVersionUID = 1L;
	
	JPanel p;
	JTextField tf1;
	JLabel l = new JLabel("Nome:");
	
	JPanel p2;
	JTextField tf2;
	JLabel l2 = new JLabel(" age:  ");
	
	JPanel p3;
	JButton bt;
	
	
	public static void main(String[] args) {
	   Aplic a = new Aplic();
	   a.init();
	}
	
	
	
	public void init(){
		getContentPane().add(getP(),BorderLayout.NORTH);
		getContentPane().add(getP2(),BorderLayout.CENTER);
		getContentPane().add(getP3(),BorderLayout.SOUTH);
		setTitle(" ************** CADASTRO *********** ");
		setSize(400,120);
		setLocation(400,400);
		setVisible(true);
	}
	
	
	
	public JPanel getP(){
	    if(p == null){
	       p = new JPanel();	
	       p.add(l);
	       p.add(getTf1());
	    }
		return p;
	}
	
	
	public JPanel getP2(){
	    if(p2 == null){
	       p2 = new JPanel();	
	       p2.add(l2);
	       p2.add(getTf2());
	    }
		return p2;
	}
	
	
	public JPanel getP3(){
	    if(p3 == null){
	       p3 = new JPanel();	
	       p3.add(getBt());
	    }
		return p3;
	}
	
	
	
	public JTextField getTf1(){
		if(tf1 == null){
		   tf1 = new JTextField(15);	
		}
		return tf1;
	}
	
	
	public JTextField getTf2(){
		if(tf2 == null){
		   tf2 = new JTextField(15);	
		}
		return tf2;
	}

	
	public JButton getBt(){
		if(bt == null){
		   bt = new JButton("Listar");
		   bt.addActionListener(new ActionListener(){
				@Override
				public void actionPerformed(ActionEvent e) {
					
					JFrame f = new JFrame();
					JPanel p = new JPanel();
					
					
					String[] col = {"Nome", "País"};
					
					
					String[][] comp = {
							{tf1.getText(),tf2.getText()},	
					};
					
					
					JTable t = new JTable(comp,col);	
					
					JScrollPane scroll = new JScrollPane(t);
					scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
					scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
					
					p.add(scroll);
					f.getContentPane().add(p);
					f.setTitle(" *** CLIENTES CADASTRADOS *** ");
					f.setSize(500,100);
					f.setLocation(400,410);
					f.setVisible(true);
					}
				
		   });
		} 
		return bt;
	}
		
}//class