About debug

my database is oracle9i , if reason is about enviroment setting ,how to do it ?

--And jdbc20x.zip have any bug , I have some code success compiled by javac (dos mode),but can't by the IDE

error msg as follows:

C:/devtools/s1studio/ee/lib/ext/jdbc20x.zip(javax/sql/DataSource.java) [32:1] class DataSource is public, should be declared in a file named DataSource.java

(source unavailable)

1 error

Errors compiling DBConnectionManagerForJNDI.

my source code :

try

{

Context ct = new InitialContext();

DataSource ds = (DataSource)ct.lookup("ConnectionPool");

cn = ds.getConnection();

}

catch(Exception e)

{

e.printStackTrace() ;

}

zebra-ch at 2007-7-1 20:28:09 >

all code as follows:

package com.hisun.mvqq.bean;

/**

*

* @author Administrator

*/

import java.sql.*;

import javax.sql.DataSource;

import javax.naming.*;

import java.util.*;

public class DBConnectionManagerForJNDI extends Object implements java.io.Serializable

{

/** Creates new DBConnectionManager */

public DBConnectionManagerForJNDI()

{

}

public static Connection getConnection()

{

Connection cn= null ;

try

{

Context ct = new InitialContext();

DataSource ds = (DataSource)ct.lookup("ConnectionPool");

cn = ds.getConnection();

}

catch(Exception e)

{

e.printStackTrace() ;

}

return cn ;

}

}

This is about question two(jdbc20x.zip bug)

Would you tell me some thing about first question(the distinction between debug enviroment and running enviroment)

zebra-ch at 2007-7-1 20:28:09 >