求大师相助啊！修改一下录入信息的程序代码，不知道怎么引用各种控件啊

[xrrtaotao]

帮忙修改一下代码吧。。。实在不会了。。。
要实现学生信息录入功能，最顶一层要有登录、添加、查询、删除、更新、退出菜单选项，下面的编号、姓名、生日、住址、简历后面是文本框，婚否后面是个单选的按钮框
import java.awt.BorderLayout;


import javax.swing.*;

import java.awt.Dimension;

import java.awt.Rectangle;

public class MyLuRu extends JFrame {

private static final long serialVersionUID = 1L;

private JPanel jContentPane = null;


private JLabel jLabel0 = null;

private JLabel jLabel = null;

private JLabel jLabel1 = null;

private JLabel jLabel4 = null;

private JLabel jLabel5 = null;

private JLabel jLabel2 = null;

private JLabel jLabel6= null;
private JLabel jLabel7 = null;
private JTextField jTextField = null;

private JRadioButton jRadioButton = null;

private JRadioButton jRadioButton1 = null;
private JRadioButton jRadioButton2=null;

private JComboBox jComboBox = null;

private JComboBox jComboBox1 = null;

private JButton jButton = null;

private JButton jButton1 = null;
private JButton jButton2 = null;
private JButton jButton3= null;


private JTextArea jTextArea = null;

private ButtonGroup mybg=new ButtonGroup();

/**

* This is the default constructor

*/

public MyLuRu() {

super();

initialize();

}

/**

* This method initializes this

*

* @return void

*/

private void initialize() {

this.setSize(400, 600);

this.setContentPane(getJContentPane());

this.setTitle("录入");

this.addWindowListener(new java.awt.event.WindowAdapter() {

public void windowClosing(java.awt.event.WindowEvent e) {

System.exit(0);

}

});

this.setVisible(true);

}

/**

* This method initializes jContentPane

*

* @return javax.swing.JPanel

*/

private JPanel getJContentPane() {

if (jContentPane == null) {

jLabel7 = new JLabel();

jLabel7.setBounds(new Rectangle(16, 318, 39, 18));

jLabel7.setText("简历：");
jLabel6 = new JLabel();

jLabel6.setBounds(new Rectangle(16, 276, 39, 18));

jLabel6.setText("住址：");

jLabel2 = new JLabel();

jLabel2.setBounds(new Rectangle(16, 234, 39, 18));

jLabel2.setText("籍贯：");

jLabel5 = new JLabel();

jLabel5.setBounds(new Rectangle(16,192, 39, 18));

jLabel5.setText("婚否：");

jLabel4 = new JLabel();

jLabel4.setBounds(new Rectangle(16, 150, 39, 18));

jLabel4.setText("生日：");

jLabel1 = new JLabel();

jLabel1.setBounds(new Rectangle(16, 108, 39, 18));

jLabel1.setText("性别：");

jLabel = new JLabel();

jLabel.setBounds(new Rectangle(16, 66, 39, 18));

jLabel.setText("姓名：");

jLabel0 = new JLabel();

jLabel0.setBounds(new Rectangle(16, 24, 39, 18));

jLabel0.setText("编号：");

jContentPane = new JPanel();

jContentPane.setLayout(null);

jContentPane.add(jLabel0, null);
jContentPane.add(jLabel, null);

jContentPane.add(jLabel1, null);

jContentPane.add(jLabel2, null);

jContentPane.add(jLabel4, null);
jContentPane.add(jLabel5, null);
jContentPane.add(jLabel6, null);
jContentPane.add(jLabel7, null);


jContentPane.add(getJTextField(), null);
jContentPane.add(getJTextField0(), null);
jContentPane.add(getJTextField4(), null);
jContentPane.add(getJTextField6(), null);
jContentPane.add(getJRadioButton(), null);

jContentPane.add(getJRadioButton1(), null);


mybg.add(jRadioButton);

mybg.add(jRadioButton1);

jContentPane.add(getJComboBox(), null);

jContentPane.add(getJComboBox(), null);

jContentPane.add(getJButton(), null);

jContentPane.add(getJButton1(), null);

jContentPane.add(getJTextArea(), null);

}

return jContentPane;

}

private JTextField getJTextField0() {

if (jTextField == null) {

jTextField = new JTextField();

jTextField.setBounds(new Rectangle(61, 24, 180, 18));

}

return jTextField;

}

private JTextField getJTextField() {

if (jTextField == null) {

jTextField = new JTextField();

jTextField.setBounds(new Rectangle(61, 66, 180, 18));

}

return jTextField;

}

/**

* This method initializes jRadioButton

*

* @return javax.swing.JRadioButton

*/

private JRadioButton getJRadioButton() {

if (jRadioButton == null) {

jRadioButton = new JRadioButton();

jRadioButton.setBounds(new Rectangle(61, 108, 38, 26));

jRadioButton.setText("男");

}

return jRadioButton;

}

/**

* This method initializes jRadioButton1

*

* @return javax.swing.JRadioButton

*/

private JRadioButton getJRadioButton1() {

if (jRadioButton1 == null) {

jRadioButton1 = new JRadioButton();

jRadioButton1.setBounds(new Rectangle(117, 108, 38, 26));

jRadioButton1.setText("女");

}

return jRadioButton1;

}

/**

* This method initializes jComboBox

*

* @return javax.swing.JComboBox

*/

private JTextField getJTextField4() {

if (jTextField == null) {

jTextField = new JTextField();

jTextField.setBounds(new Rectangle(61, 150, 180, 18));

}

return jTextField;

}

private JRadioButton getJRadioButton2() {

if (jRadioButton2 == null) {

jRadioButton2 = new JRadioButton();

jRadioButton2.setBounds(new Rectangle(62, 192, 38, 26));

jRadioButton2.setText("");

}

return jRadioButton2;

}

private JComboBox getJComboBox() {

if (jComboBox == null) {

String[] strcb={"北京","上海","南京"};

jComboBox = new JComboBox(strcb);

jComboBox.setBounds(new Rectangle(62, 234, 93, 18));

}

return jComboBox;

}

/**

* This method initializes jComboBox1

*

* @return javax.swing.JComboBox

*/



/**

* This method initializes jButton

*

* @return javax.swing.JButton

*/
private JTextField getJTextField6() {

if (jTextField == null) {

jTextField = new JTextField();

jTextField.setBounds(new Rectangle(61, 276, 180, 18));

}

return jTextField;

}

private JButton getJButton() {

if (jButton == null) {

jButton = new JButton();

jButton.setBounds(new Rectangle(16, 481, 60, 28));

jButton.setText("上一条");

jButton.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

String strname=jTextField.getText();

String strsex="男";

if(jRadioButton1.isSelected()){

strsex="女";

}

String strzy=jComboBox.getSelectedItem().toString();

String strwh=jComboBox1.getSelectedItem().toString();

jTextArea.setText("姓名:"+strname+"\r\n"+"性别："+strsex+"\r\n"+"专业："+strzy+"\r\n"+"文化："+strwh);

}

});

}

return jButton;

}

/**

* This method initializes jButton1

*

* @return javax.swing.JButton

*/

private JButton getJButton1() {

if (jButton1 == null) {

jButton1 = new JButton();

jButton1.setBounds(new Rectangle(108, 481, 60, 28));

jButton1.setText("下一条");

jButton1.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

System.exit(0);

}

});

}

return jButton1;

}

private JButton getJButton2() {

if (jButton2 == null) {

jButton2 = new JButton();

jButton2.setBounds(new Rectangle(200, 481, 60, 28));

jButton2.setText("第一条");

jButton2.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

System.exit(0);

}

});

}

return jButton2;

}

private JButton getJButton3() {

if (jButton3 == null) {

jButton3 = new JButton();

jButton3.setBounds(new Rectangle(292, 481, 60, 28));

jButton3.setText("末一条");

jButton3.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(java.awt.event.ActionEvent e) {

System.exit(0);

}

});

}

return jButton3;

}
/**

* This method initializes jTextArea

*

* @return javax.swing.JTextArea

*/

private JTextArea getJTextArea() {

if (jTextArea == null) {

jTextArea = new JTextArea();

jTextArea.setBounds(new Rectangle(60, 350, 229, 130));

}

return jTextArea;

}

public static void main(String args[]){

new MyLuRu();

}

}