Some plz help a poor student

Question

Hi
I'm a student stuck on a really crappy course my teacher has taught me nothing about java and CORBA and given me a coursework on it :(
I just want 2 use this program client/server type with CORBA, it checks a users ID and username against those held in a database
Can any1 help me do that please??
import javax.swing.JOptionPane;
import java.sql.*;
public class log
public static void main(String[] args)
//client
String UserId;
String Password;
UserId = JOptionPane.showInputDialog("Eneter your UserID"); // were the user eneters his User
Password = JOptionPane.showInputDialog("Eneter your Password");//were the user eneters his Password
//server
try {
//have to be in a try catch block
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//setting up the database
String dataSourceName = "cw2";
String dbURL = "jdbc:odbc:" + dataSourceName;
Connection con = DriverManager.getConnection(dbURL, "","");
//setting up the database
Statement stmt = con.createStatement();
String query = "SELECT Username , password FROM LOG"; // find the values and printen them out
ResultSet rs = stmt.executeQuery(query);
String s, n;
boolean flag = false;
while(rs.next())
s = rs.getString("UserName");
n = rs.getString("password");
if(s.equals(UserId) && n.equals(Password))
flag = true;
System.out.println( " access allowed " );
//grant access
break;
} //if
} //while
if(flag == false)
System.out.println( " access refused " );
//deny access
catch (Exception err) {
System.out.println("ERROR: " + err);
System.exit(0);
idl file
module myapp
interface validator
boolean validate_user(in wstring username, in string password);

Answer 1

Why not take a look at the tutorials?
http://java.sun.com/j2se/1.4.1/docs/guide/idl/index.html
http://java.sun.com/j2se/1.4.1/docs/guide/corba/index.html
You could adapt the Hello World IDL from the tutorial from
module HelloApp
interface Hello
string sayHello();
oneway void shutdown();
to something like
module Security
interface ClientVerifier
boolean allowAccess(in wstring name, in wstring password);