java oracle jdbc로 연결하여 값 출력

package untitled1;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.sql.*;
import com.borland.jbcl.layout.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2008</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Frame1
    extends JFrame {
  JPanel contentPane;

  //Construct the frame
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
      display();
    }
    catch (Exception e) {
      e.printStackTrace();
    }
  }
  public final static String url= "jdbc:oracle:thin:@190.1.117.149:1521:orcl";
  public final static String us = "hpmsuser";
  public final static String pw = "hpmsuser";
  XYLayout xYLayout1 = new XYLayout();
  JTextField jTextField1 = new JTextField();
  JTextField jTextField2 = new JTextField();
  JTextField jTextField3 = new JTextField();

  private void display() {
// TODO Auto-generated method stub
    String driver = "oracle.jdbc.driver.OracleDriver";
    //String url = "jdbc:odbc:EDURA;UID=hpmsuser;PWD=hpmsuser";
    Connection conn = null;
    String sql =
        "SELECT * FROM USERS";
    try {
      //Driver Loading
      Class.forName(driver);
      System.out.println("Driver Loading Sucess");
    }
    catch (ClassNotFoundException ex) {
      System.out.println("Class Not Found");
    }
    Statement stmt = null;
    ResultSet rs = null;
    try {
      //DB Connection
      conn = DriverManager.getConnection(url,us,pw);
      //Statement Object 생성
      stmt = conn.createStatement();
      //Query   실행
      rs = stmt.executeQuery(sql);
      while (rs.next()) {
        String OBJECT_ID = rs.getString("OBJECT_ID");
        String CLASS_ID = rs.getString("CLASS_ID");
        String LOGIN = rs.getString("LOGIN");
        jTextField1.setText(OBJECT_ID);
        jTextField2.setText(CLASS_ID);
        jTextField3.setText(LOGIN);
      }
    }
    catch (SQLException ex) {
      System.out.println(ex.toString());
    }
    finally {
      try {
        if (rs != null) rs.close();
        if (conn != null) conn.close();
      }
      catch (SQLException ex) {
        System.out.println(ex.toString());
      }
    }
  }

  //Component initialization
  private void jbInit() throws Exception {
    contentPane = (JPanel)this.getContentPane();
    jTextField1.setText("jTextField1");
    contentPane.setLayout(xYLayout1);
    this.setLocale(java.util.Locale.getDefault());
    this.setSize(new Dimension(400, 300));
    this.setState(Frame.NORMAL);
    this.setTitle("Frame Title");
    contentPane.setVerifyInputWhenFocusTarget(true);
    jTextField2.setText("jTextField2");
    jTextField3.setText("jTextField3");
    contentPane.add(jTextField1, new XYConstraints(45, 39, 99, 44));
    contentPane.add(jTextField2,  new XYConstraints(47, 106, 93, 31));
    contentPane.add(jTextField3,  new XYConstraints(44, 152, 99, 33));
  }

  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
}