Not able to to insert values in ms-access database

[kkji]

In below code t1,t2,t3 respectivily three fields of form t1 for name,t2 e_no an t3 for password
code
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
public class RegForm extends HttpServlet{
public void doPost(HttpServletRequest req,HttpServletResponse res)throws IOException,ServletException{
res.setContentType("text/html");
PrintWriter out=res.getWriter();
String n=req.getParameter("t1");
String e=req.getParameter("t2");
String p=req.getParameter("t3");
//Statement st= null;
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con=DriverManager.getConnection("jdbc:odbc:school" ,"","");
PreparedStatement st=con.prepareStatement("insert into student values + (?,?,?)");
st.clearParameters();
st.setString(1,n);
st.setInt(2,Integer.parseInt(e));
st.setString(3,p);
st.executeUpdate();

con.close();
}catch(Exception ex){
ex.printStackTrace(System.out);
}
}
}

I am not able to insert values in db by above code.
db fields are
name data-type text
e_no data-type number
pass data-type text

Please provide any pointer

[kkji]

any help please.