E Agora...Como Acessar?

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.Container;
import java.net.URL;
import java.sql.*;
import javax.swing.*;

public class Leituraw{
	public Leituraw(){
		(new Cadastro()).show();
		
		}
		
		static boolean verificaWarning(SQLWarning w, String str) throws SQLException{
			if(w != null){
				System.out.println(str);
				while (w != null) {
					System.out.println("SQLState: " + w.getSQLState());
					System.out.println("Mensagem: " + w.getMessage());
					System.out.println("ErrorCode: " + w.getErrorCode() + " ");
					
					w = w.getNextWarning();
					}
					return true;
					}
					return false;
					
					}
					
					private static void apresentaResultado(ResultSet rs) throws SQLException{
						int i=0;
						
						ResultSetMetaData rsmd = rs.getMetaData();
						int numCols = rsmd.getColumnCount();
						
						System.out.println(numCols);
						// System.out.println(rsmd.getColumnLabel(i));
						
						// System.out.println(", ");
						
						while(rs.next()){
							for (i=1; i<=numCols; i++){
								System.out.println("	"+rsmd.getColumnName(i)+"=	"+rs.getString(i));
								}
								System.out.println("");
								}
								}
								private static void verificaExcecoes(SQLException e, String str){
									System.out.println(str);
									while(e != null){
										System.out.println("SQLState: " + e.getSQLState());
										System.out.println("Mensagem: " + e.getMessage());
										System.out.println("ErrorCode: " + e.getErrorCode() + "");
										e = e.getNextException();
										}
										}
										public static void main (String[] args) {
											String url = "jdbc:odbc:North";
											String pergunta = "SELECT * FROM Relação";
											try {
												Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
												Connection con = DriverManager.getConnection (url,"","");
												verificaWarning(con.getWarnings(), "WARNING");
												DatabaseMetaData dmd = con.getMetaData();
												
												Statement stmt = con.createStatement();
												ResultSet rs = stmt.executeQuery(pergunta);
												
												Leituraw L = new Leituraw();
												rs.close();
												stmt.close();
												con.close();
												}
												catch(SQLException e) {
													verificaExcecoes(e, "Captura das SQLException");
													}
													catch(java.lang.Exception e){
														e.printStackTrace();
														}
														}
														
	private class Cadastro extends JFrame{
		private JPanel lateral, base;
		private JTextField jtext, jtext2, jtext3;
		
		public Cadastro()
		{
			
			setDefaultCloseOperation(EXIT_ON_CLOSE);
			setBounds(150,200,280,200);
			
			lateral = new JPanel();
			SpringLayout layout = new SpringLayout();
			
			JLabel label = new JLabel("    Nome:");
			layout.putConstraint(SpringLayout.WEST, label, 5, SpringLayout.WEST, lateral);
			layout.putConstraint(SpringLayout.NORTH, label, 5, SpringLayout.NORTH, lateral);
			
			lateral.add(label);
			
			lateral.setLayout(layout);
			JTextField jtext = new JTextField(50);
			layout.putConstraint(SpringLayout.WEST, jtext, 5, SpringLayout.EAST, label);
			layout.putConstraint(SpringLayout.NORTH, jtext, 5, SpringLayout.NORTH, lateral);
			lateral.add(jtext);
			
			lateral.setBorder(BorderFactory.createEtchedBorder());
			getContentPane().add(lateral, BorderLayout.CENTER);
			
			base = new JPanel ();
			base.setLayout(new FlowLayout());
			
			base.add(new JButton("Cadastrar"));
			base.add(new JButton("Cancelar"));
			
			base.setBorder(BorderFactory.createEtchedBorder());
			
			getContentPane().add(base, BorderLayout.SOUTH);
			
			}
			private class TextFieldHandler implements ActionListener{
				public void actionPerformed( ActionEvent e )
				
				{
					
					String s = "";
					if(e.getSource() == jtext)
						s = "text1: " + e.getActionCommand();
					else if(e.getSource() == jtext2)
						s = "text2: " + e.getActionCommand();
					else if(e.getSource() == jtext3)
						s = "text3: " + e.getActionCommand();
						
						JOptionPane.showMessageDialog (null, s);
						
						 
		}
	}
										}
}