Problem with JRadioButton and Access Database

Hello sir ,Here I have write following code to save text on JradioButton but this is not saved in Access Databse,
I want to store course type in to database and also other fields value .
plz help Me.
import java.io.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.sql.*;
import java.util.*;

class coursefrm {
JFrame f;
JPanel p1,p2,p3;
JTabbedPane tp;
ImageIcon btnimg1,btnimg2;
JLabel l1, l2, l3, l4,l5,l6,l7,l8,l9,l10,l11,l12;
JTextField tf1,tf2,tf3,tf4,tf5,tf6,tf7,tf8,tf9,tf10;
JRadioButton r1,r2;
JScrollPane sp1;
JTextField text;
JButton savebtn,resetbtn,editbtn1,editbtn2,deletebtn ;
coursefrm(){
f=new JFrame("Form");
p1=new JPanel(new GridLayout(7,3));
p2=new JPanel(new GridLayout(6,2));
p3=new JPanel(new GridLayout(2,2));
tp=new JTabbedPane();
l1=new JLabel("Course ID:");
l2=new JLabel("Course Name:");
l3=new JLabel("Duration:");
l4=new JLabel("Fees:");
l5=new JLabel("Enter Course ID:");
l7=new JLabel("Course ID:");
l8=new JLabel("Course Name:");
l9=new JLabel("Duration:");
l10=new JLabel("Fees:");
l11=new JLabel("Course Type:");
l12=new JLabel();
text=new JTextField(15);
tf1=new JTextField(12);
tf2=new JTextField(12);
tf3=new JTextField(12);
tf4=new JTextField(12);
tf5=new JTextField(12);
tf6=new JTextField(12);
tf7=new JTextField(12);
tf8=new JTextField(12);
tf9=new JTextField(12);
tf10=new JTextField(12);
r1=new JRadioButton("SemWise");
r2=new JRadioButton("YearWise");
savebtn=new JButton(" Add ");
resetbtn=new JButton(" Reset");
editbtn1=new JButton(" Edit ");
editbtn2=new JButton(" Save");
deletebtn=new JButton("Delete");
p1.add(l1);
p1.add(tf1);
p1.add(l2);
p1.add(tf2);
p1.add(l3);
p1.add(tf3);
p1.add(l4);
p1.add(tf4);
p1.add(l11);
p1.add(r1);
p1.add(l12);
p1.add(r2);
p1.add(savebtn);
p1.add(resetbtn);
p2.add(l7);
p2.add(tf7);
p2.add(l8);
p2.add(tf8);
p2.add(l9);
p2.add(tf9);
p2.add(l10);
p2.add(tf10);
p2.add(editbtn1);
p2.add(editbtn2);
p3.add(l5);
p3.add(tf5);
p3.add(deletebtn);
resetbtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae){
tf1.setText("");
tf2.setText("");
tf3.setText("");
tf4.setText("");
}
});

savebtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae){
int value1=Integer.parseInt(tf1.getText());
String value2=tf2.getText();
int value3=Integer.parseInt(tf3.getText());
int value4=Integer.parseInt(tf4.getText());
String g=text.getText();
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con =DriverManager.getConnection("jdbc:odbc:mydsn","","");
PreparedStatement st=con.prepareStatement("insert into course(id,name,duration,fees,coursetype) values(?,?,?,?,?)");
st.setInt(1,value1);
st.setString(2,value2);
st.setInt(3,value3);
st.setInt(4,value4);
st.setString(5,g);
st.executeUpdate();
JOptionPane.showMessageDialog(p1,"Data is successfully inserted into database.");
con.close();
}
catch(Exception e){
JOptionPane.showMessageDialog(p1,"Error in submitting data!");
}
}
});
deletebtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae){
String value1=tf5.getText();
int ide=Integer.parseInt(value1);
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con =DriverManager.getConnection("jdbc:odbc:mydsn","","");
PreparedStatement st=con.prepareStatement("DELETE FROM course WHERE id = ?");
st.setInt(1,ide);
st.executeUpdate();
JOptionPane.showMessageDialog(p3,"Record is deleted successfully.");
con.close();
}
catch(Exception exp3){
JOptionPane.showMessageDialog(p3,"Error in deleting record.");
}
}
});
editbtn1.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae){
String value=tf7.getText();
int ide=Integer.parseInt(value);
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con =DriverManager.getConnection("jdbc:odbc:mydsn","","");
PreparedStatement st=con.prepareStatement("select * from course where id=?");
st.setInt(1,ide);
ResultSet res=st.executeQuery();
res.next();
tf7.setText(Integer.toString(res.getInt(1)));
tf8.setText(res.getString(2));
tf9.setText(res.getString(3));
tf10.setText(Integer.toString(res.getInt(4)));
con.close();
}
catch(Exception e)
{
JOptionPane.showMessageDialog(p2,"Can not edit data");
}
}
});
editbtn2.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae){
try
{
int x=JOptionPane.showConfirmDialog(p2,"Confirm edit? All data will be replaced");
if(x==0){
try{
int value1=Integer.parseInt(tf7.getText());
String value2=tf8.getText();
int value3=Integer.parseInt(tf9.getText());
int value4=Integer.parseInt(tf10.getText());
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con =DriverManager.getConnection("jdbc:odbc:mydsn","","");
Statement st=con.createStatement();
//System.out.println("update course set name='"+value2+"', duration='"+value3+"',fees='"+value4+"' where id='"+value1+"'");
st.executeUpdate("update course set name='"+value2+"' , duration="+value3+",fees="+value4+" where id="+value1+"");
JOptionPane.showMessageDialog(p2,"Updated successfully");
con.close();
}
catch(Exception ex)
{
JOptionPane.showMessageDialog(p2,"Error in updating edit fields");
}
}
}
catch(Exception ex)
{
JOptionPane.showMessageDialog(p2,"Error");
}
}
});
}
void dis()
{
f.getContentPane().add(tp);
tp.addTab("Add Record",p1);
tp.addTab("Edit Record",p2);
tp.addTab("Delete Record",p3);
f.setSize(350,180);
f.setVisible(true);
f.setResizable(true);
}
public static void main(String z[]){
coursefrm pro=new coursefrm();
pro.dis();
}
/*public ActionListener al ( new ActionListener() {
public void actionPerformed(ActionEvent e) {
text.setText(((JRadioButton) e.getSource()).getText());
}
});*/
}